Homemade Peanut Brittle Recipe (2024)

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Y’all, this Peanut Brittle Recipe is a Southern gem that’s totally captured our hearts! We’re talking the ultimate homemade goodness: it’s got that crunch, that buttery bliss, and just the right balance of sweet and savory vibes. It’s the MVP of any holiday dessert lineup, and trust me, it’s just as amazing when you bundle it up as a sweet, from-the-heart gift for your favorite folks.

Homemade Peanut Brittle Recipe (1)

There is something truly magical about homemade candy, especially during the holiday season! Each year, I whip up a few batches of various candies and cookies to share around the neighborhood or to pass out to family and friends.

And y’all, I never get any complaints. One of my favorites? Peanut Brittle of course!

Peanut brittle is a smooth, buttery candy (similar to toffee), with peanuts in it, that is quickly cooked over a stovetop and poured onto baking sheets to cool.

Once cool, the brittle is broken up into bite-sized pieces and stored in airtight aluminum or plastic tins. Honestly, if you’ve never had this stuff before, you don’t know what you’re missing boos!

If you love this Southern candy recipe, you will also enjoy my Southern Pralines, Bourbon Balls, Chocolate Bark, and Turtle Candies. Cook a batch of my best peanut brittle recipe and these other favorites and package them up for a thoughtful homemade holiday gift or to enjoy at all your holiday parties!

Homemade Peanut Brittle Recipe (2)

Table of Contents

Why You’ll Love This Recipe foar Peanut Brittle

  • Peanut brittle can be a bit tricky! But I’m sharing all my tips to make sure yours comes out great!
  • Tastes so good. Sweet, buttery toffee-like candy studded with plenty of peanuts!
  • Made with only SIX ingredients! Not including the water and salt.
  • A true Southern holiday classic. If you grew up eating peanut brittle but haven’t ever tried making it, now you can!

Ingredients to Make Peanut Brittle

All you’re going to need are six simple ingredients to make homemade peanut brittle. Here’s a close look at what to gather together:

  • Granulated sugar: White granulated sugar is the BEST bet for making peanut brittle. Do not try to make this using sugar substitutes, it ain’t gonna work.
  • Light corn syrup: It’s essential for creating the texture of your peanut brittle. It keeps the sugar from forming crystals so you get a smooth hard candy consistency. No substitutes here!
  • Spanish peanuts: I prefer using raw Spanish peanuts but there’s no reason you can’t use roasted. Just make sure they are unsalted.
  • Baking soda: This helps get those bubbles released! It also aids in the hardening process.
  • Butter: Use unsalted real butter for the best flavor. It adds a touch of richness and using unsalted means you have more control over the saltiness of your brittle.
  • Vanilla extract: Use pure for the best flavor. This adds gentle warming essence in both flavor and smell to your peanut brittle.

How to Make Peanut Brittle

Gather all your ingredients and let’s get started! Here’s an overview of the steps involved but be sure to check all my tips below and also the detailed instructions in the recipe card before getting started.

  1. Cook the sugar base. Add the sugar, corn syrup, and water to a large saucepan. Whisk everything together and then cook over medium heat until the sugar dissolves.
  2. Bump up the heat. Increase the heat to medium-high once the sugar is dissolved and toss in the peanuts and salt. Fit a candy thermometer to the side of the pan and keep watch as you continuously stir the nuts. When the thermometer hits 300°F, the candy will have reached its hard crack stage. Turn off the heat.
  3. Add the final ingredients. Move the saucepan off the burner and carefully add the baking soda, butter, and vanilla to the candy mixture and mix it well.
  4. Pour your peanut candy mixture. Slowly divide and pour the hot mixture onto two well-greased baking sheets, spreading it out to your desired thickness.
  5. Set and enjoy. Cool the brittle completely for about 1-2 hours.
  6. Crack apart the brittle and serve!
Homemade Peanut Brittle Recipe (3)

Tips for Making the Best Peanut Brittle

  • Use a candy thermometer! If you overcook the brittle, it could be bitter or burnt. If you undercook it, the brittle won’t properly set and the end result will be sticky. A thermometer is an accessible and inexpensive way to monitor temperature and ensure properly cooked brittle.
  • Make sure your baking soda is fresh and active. Baking soda creates tons of little air bubbles that improve the texture of the brittle. If it’s stale or inactive, baking soda is unable to create the necessary reaction.
  • Whisk continuously! Do not walk away from the burner for even a second. Sugar burns quickly and, if left unattended, the mixture will harden and become pretty unappetizing. Keep whisking!
  • Use a bigger pot than you’d think you need. Once the baking soda is added, the mixture will begin to foam and rise. If you don’t have enough space in the saucepan, the mixture will boil over and make a huge mess.
  • Be super careful! The candy gets super hot and can easily spill onto your hands or wrists. Wearing protective oven mitts or gloves is a great choice. While pouring, direct the pot away from you and use a spatula to scrape the candy onto the pans.

Popular Substitutions & Additions

  • Pecan brittle and other nut variations. Swap the peanuts for pecans, macadamia nuts, cashews, or almonds.
  • Spicy peanut brittle. Add a pinch of cayenne at the end along with the baking soda and butter. It will give a gentle bit of heat to your candy for a sweet and spicy combination that’s out of this world.
  • Add some chocolate drizzle. After breaking up your peanut brittle spread it out on the tray and drizzle with melted chocolate. Let the chocolate harden before storing.
  • Mixed nut brittle. Use a combination of all your favorite nuts.
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What to Serve with Peanut Brittle

You’re definitely going to want to have a platter of these out at parties for everyone to grab! Here are some other easy-to-eat sweets and savory dishes perfect to eat with your hands at parties.

  • For something that’s a bit salty and sweet try this cranberry orange chex mix or some bacon popcorn.
  • Add them to a dessert board along with some chocolate truffles.
  • No one can resist a deviled egg! They’re perfect for eating in just a couple of bites.

How to Store Peanut Brittle

Store fully cooled and hardened brittle in an airtight container at room temperature. Do not refrigerate as the cool moisture will cause the brittle to soften.

How long will peanut brittle last?

If stored properly, it will stay fresh for 6-8 weeks.

Can I freeze this recipe for peanut brittle?

No, you can’t freeze it boos. This will introduce moisture to your brittle which will cause it to soften.

Homemade Peanut Brittle Recipe (5)

Frequently Asked Questions

Why didn’t my homemade peanut brittle get hard?

The most likely culprit is you made a mistake measuring ingredients or you didn’t heat your sugar mixture up to the right temperature. It must cook to 300°F in order for it to reach the state where it will form a hard candy. Using a thermometer while heating your candy mixture easily solves this problem.

How long does it take for peanut brittle to get hard?

It will take 1-2 hours for it to fully cool down and harden.

Can I swap the peanuts for another nut?

Yes of course! You can use just about any nut you enjoy to make brittle. Just make sure they are unsalted for the best flavor.

Cook up a batch of the best peanut brittle this holiday season (or any time for reals)! It makes an easy hostess gift to take along to parties, share with neighbors, or enjoy at all your holiday events. I’m sure everyone will love the buttery goodness of this crunchy peanut brittle. Everybody will be screaming “gimme the goodness”!

More Holiday Dessert Recipes

  • Divinity Candy
  • Sugar Cookie Martini
  • Chocolate Pound Cake with Peppermint Ganache
  • Peppermint Brownies

Homemade Peanut Brittle Recipe (6)

Peanut Brittle Recipe

Crunchy, buttery, sweet, and savory, this homemade Peanut brittle recipe is all you need to please friends and family this holiday season!

5 from 11 votes

Print Pin Rate

Course: Dessert, Snack

Cuisine: American

Prep Time: 30 minutes minutes

Total Time: 30 minutes minutes

Servings: 2 lbs

Calories: 2356kcal

Author: Jocelyn Delk Adams

Ingredients

  • 2 cups granulated sugar
  • 1 cup light corn syrup
  • 1 cup water
  • 2 ½ cups raw Spanish peanuts
  • ½ tsp salt
  • 1 tsp baking soda
  • 1 tbsp unsalted butter
  • 1 ½ tsp vanilla extract

Instructions

  • In a large saucepan, combine the sugar, corn syrup and water. Cook over medium heat until the sugar dissolves, stirring constantly.

  • Once sugar dissolves, increase the heat to medium-high. Add peanuts and salt then cook until the temperature reaches 300 degrees or the hard crack stage, making sure to continuously stir.

  • Finally add in baking soda, butter and vanilla and mix well. Next, pour the brittle mixture onto 2 thoroughly greased baking sheets and spread to the thickness you desire.

  • Once completely cooled, crack into pieces and serve.

Notes

MAKE AHEAD + LEFTOVER STORAGE INSTRUCTIONS
If stored in an airtight container at room temperature, homemade peanut brittle will stay fresh for 6-8 weeks. Do not refrigerate or the cool moisture will cause the brittle to soften.

Use a candy thermometer! If you overcook the brittle, it could be bitter or burnt. If you undercook it, the brittle won’t properly set and the end result will be sticky. A thermometer is an accessible and inexpensive way to monitor temperature and ensure properly cooked brittle.

Make sure your baking soda is fresh and active. Baking soda creates tons of little air bubbles that improve the texture of the brittle. If it’s stale or inactive, baking soda is unable to create the necessary reaction.

Whisk continuously! Do not walk away from the burner for even a second. Sugar burns quickly and, if left unattended, the mixture will harden and become pretty unappetizing. Keep whisking!

Use a bigger pot than you’d think you need. Once the baking soda is added, the mixture will begin to foam and rise. If you don’t have enough space in the saucepan, the mixture will boil over and make a huge mess.

Be super careful! The candy gets super hot and can easily spill onto your hands or wrists. Wearing protective oven mitts or gloves is a great choice. While pouring, direct the pot away from you and use a spatula to scrape the candy onto the pans.

Nutrition

Calories: 2356kcal | Carbohydrates: 360g | Protein: 48g | Fat: 97g | Saturated Fat: 18g | Polyunsaturated Fat: 32g | Monounsaturated Fat: 42g | Trans Fat: 1g | Cholesterol: 15mg | Sodium: 1283mg | Potassium: 1370mg | Fiber: 17g | Sugar: 331g | Vitamin A: 175IU | Calcium: 224mg | Iron: 7mg

Tried this Recipe? Tag me Today!Mention @GrandbabyCakes or tag #grandbabycakes!

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Homemade Peanut Brittle Recipe (2024)

FAQs

Why didn't my homemade peanut brittle get hard? ›

The main reason why peanut brittle doesn't get hard and have the crunch we expect is because the sugar was not cooked long enough. The sugar needs to be cooked to what is called the hard crack stage, 300ºF.

Why is my homemade peanut brittle chewy? ›

Why did my peanut brittle turn out chewy? The likely cause is that the sugar mixture didn't reach the proper hard crack stage temperature. Ensuring it reaches 300˚F is key to getting that classic brittle texture.

Why did my peanut brittle not turn brown? ›

If your peanut brittle reached 311°F but is a pale milky color, it's likely the candy cooked too quickly. It reached the correct temperature but didn't cook long enough to undergo sufficient Maillard reactions and develop the characteristic brown color and rich, roasted flavor. Next time, cook at a lower temperature.

What makes homemade peanut brittle sticky? ›

Whether it's during the cooking, cooling, or storage process, moisture and humidity can ruin the best batch of brittle in minutes, leaving you with a soggy, sticky mess. This is why eliminating moisture anywhere you can is our top tip on how to store peanut brittle.

What makes brittle hard? ›

What Makes it Brittle? The sugar will be cooked to 300ºF (149ºC)—hard crack stage; which when set up would be hard like a lollipop. But peanut brittle is delicate and you can easily bite into it—how? The secret is in the baking soda.

What does baking soda do in peanut brittle? ›

Baking soda is also very important at this stage since it reacts to the heat, creating carbon dioxide that aerates the caramel, enabling it to snap when someone bites into it rather than requiring them to gnaw at it until it breaks or pulls apart.

How to fix peanut brittle? ›

You can try placing the stale peanut brittle on a baking sheet and gently heating it in an oven at a low temperature, around 250°F (120°C), for a few minutes. This can help to soften it a bit and restore some of its original texture.

Why do you put water in peanut brittle? ›

Water: Water helps the sugar completely dissolve. Salt: A pinch of salt enhances the other flavors. If you opt for salted butter, you can skip this ingredient. Peanuts: Of course, you'll need peanuts for this classic treat!

Should homemade peanut brittle be refrigerated? ›

To store: Once it's completely cooled, store peanut brittle in an airtight container at room temperature. Do not refrigerate as the moisture from the fridge will cause the brittle to soften. Store for 6-8 weeks. To Freeze: Peanut brittle can be frozen and stored up to 3 months.

How can you tell when peanut brittle is done without a thermometer? ›

If you do NOT have a thermometer, here's what you do. Take a very small cup of cold water and drop a bit of the mixture in. If it dissolves into the water, it's not ready. Mine took 18 minutes to reach the correct temperature, so around 15 minutes start trying the water test.

Does weather affect making peanut brittle? ›

I've learned that brittle is better when made on a cool, dry day. When I've made the candy on a warmer, humid day, it tends to be a stickier brittle. This is because the brittle takes longer to cool, and it reaches a point where it is no longer evaporating moisture into the air.

Why is my peanut brittle bitter? ›

Those other liquid sugars have impurities that will burn at the higher temperature of making caramel, leading to a bitter-tasting brittle.

Can you use parchment paper when making peanut brittle? ›

You will want the cookie sheet to be non-stick. Use parchment paper, a silicone baking sheet or a greased cookie sheet. Spread the peanut brittle as thin as you can. Immediately add your sea salt.

Why is my peanut brittle so thick? ›

Not spreading the mixture thinly enough: If the peanut brittle is too thick (usually because you used too small of a pan), it may not cool and harden properly. Be sure to spread the mixture as thinly as possible in the pan. 4. Humidity: Humidity can affect the hardening process of the peanut brittle.

Can peanut brittle go bad? ›

Properly stored peanut brittle can last for several weeks, so you can enjoy it over time.

How do you salvage soft peanut brittle? ›

I started on medium heat, but turned it down to a bit below medium. KEEP STIRRING. While it's still semi solid you MUST keep stirring or it WILL burn. I thought it was never going to turn into a liquid, but of course it did.

Why are my peanuts not getting soft? ›

Dried peanuts may require boiling up to 24 hours until they soften. If your water is hard, full of minerals, or you are boiling at high altitude, then your boiling times for dried peanuts may be greater than 24 hours.

How long does it take for brittle to harden? ›

How long does it take for peanut brittle to harden? This microwave peanut brittle starts to harden almost immediately once you finish cooking it and stirring in the baking soda. It will be completely hardened and ready to break into pieces in just 30 minutes.

Why did my peanut butter fudge not get hard? ›

The amount of time you cook fudge directly affects its firmness. Too little time and the water won't evaporate, causing the fudge to be soft. Conversely, cook it too long and fudge won't contain enough water, making it hard with a dry, crumbly texture.

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