Old Fashioned Peanut Brittle Recipe (2024)

By Rebecca Hubbell on | Updated | Rate Recipe

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Homemade Peanut Brittle is perfect for making and sharing around the holidays! A crunchy candy layer is loaded with roasted peanuts for a sweet and salty treat.

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Homemade Peanut Brittle is perfect for making and sharing around the holidays! A crunchy candy layer is loaded with roasted peanuts for a sweet and salty treat.

So you love making candy for the holidays? Try my English Butter Toffee and Crockpot Candy recipes!

Old Fashioned Peanut Brittle Recipe (2)

I love making this Peanut Brittle recipe in winter because it’s so nostalgic and fun to share.

Peanut Brittle Candy also makes a wonderful hostess gift. Just stash a handful or two in a tin or a mason jar and tie with a ribbon!

While Peanut Brittle only contains a handful of ingredients, following the process is key for the perfect texture. But as long as you use a candy thermometer for accuracy, this recipe turns out great!

Old Fashioned Peanut Brittle Recipe (3)

Table of Contents

Peanut Brittle Ingredients:

  • Granulated sugar – The base of this treat!
  • Light corn syrup – Reacting with the sugar, corn syrups helps create that crack-able texture.
  • Dry roasted peanuts – Deliciously salty to balance out the sweetness! You can also use raw Spanish peanuts.
  • Salt – To emphasize the flavor contrast.
  • Unsalted butter – I prefer using unsalted butter and adding my own salt so I can control exactly how much goes in.
  • Baking soda – The secret to making it brittle!
Old Fashioned Peanut Brittle Recipe (4)

How To Make Peanut Brittle:

  1. In a deep skillet, slowly cook sugar, corn syrup, and 1 cup of water on medium-high heat, stirring until the sugar dissolves.
  2. Bring to a boil, and continue cooking until the sugar mixture reaches the soft-ball stage on a candy thermometer (235 degrees F), about 10 minutes
  3. Add in the peanuts and salt. Cook until the temperature reaches 300 degrees (the hard crack stage), stirring constantly, about 10 more minutes until it’s a deep golden brown. (Pay attention to this part as the brittle will burn if cooked too long).
  4. Remove from heat and add in the butter and baking soda; stir to blend. The mixture will bubble up.
  5. Pour the brittle mixture onto the prepared cookie sheet and spread it out with a spatula and allow the brittle to cool for about 30 minutes until it’s cool to the touch.
  6. Once cooled completely, slide a spatula underneath to lift the brittle and break it into pieces. Store covered at room temperature.

RECIPE TIP: A candy thermometer is going to be necessary for this recipe! It will help ensure that your temperatures are accurate and you get perfect brittle instead of a soft or burnt mess.

Old Fashioned Peanut Brittle Recipe (5)

Frequently Asked Questions:

What does baking soda do?

It’s all chemistry!

Baking soda reacts with the other ingredients to create tiny air bubbles so it easily cracks. This prevents it from becoming a rock-solid hunk of sugar.

What temperature is the brittle stage?

Called the hard-crack stage, it should get to 300 to 310 degrees F to achieve the proper texture.

How long does it take to harden?

About 20 to 30 minutes.

Why is my brittle so hard?

See above — you may not have added enough baking soda!

How do you prevent it from sticking to the pan?

Use a generous amount of cooking spray and be sure to coat the sides of the pan as well. You can also use parchment paper or a silicone mat, but DON’T use wax paper, which will melt.

How long does peanut brittle last?

Store in an airtight container at room temperature, it should keep for 2 months!

Old Fashioned Peanut Brittle Recipe (6)

More Homemade Candy Recipes:

  • Crockpot Candy – Chocolate and almond bark are melted in the Crock-Pot with peanuts then harden into a crunchy treat.
  • Irish Potato Candy – Airy coconut balls coated in cinnamon look just like potatoes … perfect for Saint Patrick’s day!
  • Pretzel Turtles – Made with pretzels, pecans, and Rolos, you’ll want to keep popping ‘em.
  • Cookie Dough Truffles – A must for cookie dough fans!
  • Candied Lemon Slices – A beautiful, delicious garnish for drinks and desserts.

Peanut Brittle

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Old Fashioned Peanut Brittle Recipe (8)

5 from 2 votes

Peanut Brittle


Author Rebecca Hubbell

Course Dessert

Cuisine British

Prep Time 5 minutes minutes

Cook Time 25 minutes minutes

Cooling Time 30 minutes minutes

Total Time 1 hour hour

Homemade Peanut Brittle is perfect for making and sharing around the holidays! A crunchy candy layer is loaded with roasted peanuts for a sweet and salty treat.

Equipment

  • Deep skillet

  • Candy Thermometer

  • Baking Sheet

  • Spatula

Ingredients

Instructions

  • Prepare a large 17” rimmed cookie sheet by spraying it with a nonstick cooking spray, spray the edges as well. Set aside.

  • In a deep skillet, slowly cook sugar, corn syrup, and 1 cup of water on medium-high heat, stirring until the sugar dissolves. bring to a boil and continue cooking until the candy thermometer reaches the soft-ball stage (235°F), about 10 minutes.

  • Add in the peanuts and salt. Cook until the candy thermometer reaches the hard crack stage (300 to 310°F), stirring constantly, about 10 more minutes. (Pay attention to this part as the brittle will burn if cooked too long).

  • Remove from heat and add in the butter and baking soda; stir to blend. The mixture will bubble up.

  • Pour the brittle mixture onto the prepared cookie sheet and spread it out with a spatula and allow the brittle to cool for about 30 minutes until it’s cool to the touch.

  • Once cooled completely, slide a spatula underneath to lift the brittle up and break it into pieces. Store covered at room temperature.

Notes

  • Use a generous amount of cooking spray and be sure to coat the sides of the pan as well. You can also use parchment paper or a silicone mat, but DON’T use wax paper, which will melt.
  • Store in an airtight container at room temperature, it should keep for 2 months!

Nutrition

Calories: 219kcal | Carbohydrates: 36g | Protein: 4g | Fat: 8g | Saturated Fat: 1g | Cholesterol: 2mg | Sodium: 146mg | Potassium: 99mg | Fiber: 1g | Sugar: 34g | Vitamin A: 18IU | Calcium: 10mg | Iron: 1mg

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Reader Interactions

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Old Fashioned Peanut Brittle Recipe (2024)

FAQs

What does baking soda do in peanut brittle? ›

Be sure to use a candy thermometer to ensure it reaches 300 degrees F or hard crack stage. What does baking soda do to peanut brittle? Adding a little baking soda aerates the peanut brittle causing it to expand slightly for a crunchy texture that won't break your teeth when you chew it.

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.

How do you keep peanut brittle crispy? ›

Lastly, avoid making brittle in a humid environment. The candy will attract moisture from the air, making it unpleasantly sticky instead of shatteringly crisp. Once it's completely cool, transfer it to an airtight container.

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.

Why is my peanut brittle hard but sticky? ›

What's important to know is that the corn syrup controls the grain of the brittle so adding too little and you have a grainy textured brittle, while adding too much will result in a stringy and sticky brittle.

Why is my peanut brittle not airy? ›

Working quickly, pour into prepared 10×15 pan. To keep the brittle light and airy, do not spread or flatten the mixture. Instead, let it flow freely. Place in a cool area and leave until completely cooled, about 2-3 hours.

Can you overcook peanut brittle? ›

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.

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.

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.

How do you make peanut brittle hard again? ›

- Preheat your oven to a low temperature, around 250°F (120°C). - Break the stale peanut brittle into smaller pieces. - Place the brittle pieces on a baking sheet in a single layer. - Heat the brittle in the oven for about 5 to 10 minutes, checking frequently to avoid overcooking.

Should homemade peanut brittle be refrigerated? ›

To store: Store peanut brittle (once it's completely cooled) 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.

What is the best pan for making peanut brittle? ›

Heavy 6 quart Dutch Oven pot. Mine is an old 1970's Club Aluminum. It's perfect! You need a heavy THICK pot so it won't scorch.

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 too thick? ›

As mentioned in “how to make peanut brittle”, it's very important to move fast after the peanuts and baking soda are mixed in. If not, the peanut brittle will turn out too thick and clumpy. Don't play the guessing game and use a candy thermometer instead. This will ensure your peanut brittle turns out perfectly golden.

Can you buy peanut brittle without peanuts? ›

By substituting Wheat Nuts® for peanuts, we can safely enjoy the taste of peanut brittle while leaving the nuts behind.

What is the purpose of baking soda in candy making? ›

Baking soda helps to aerate brittle — it literally makes the molten candy bubble in the pot — to create a brittle with an airy, almost honeycomblike texture that crunches easily when eaten.

What does baking soda do in candy making? ›

The baking soda (also known as bicarbonate of soda) heats up and when it does that, it releases a gas that gets trapped in the caramelized honey and sugar. This results in bubbles that resembles actual honeycomb from bees!

What happens if you put too much baking soda in peanut butter cookies? ›

Using too much baking soda or baking powder can really mess up a recipe, causing it to rise uncontrollably and taste terrible.

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