Best Peanut Brittle Recipe 2021

Best Peanut Brittle Recipe

Best Peanut Brittle Recipe 2021

This recipe for homemade peanut brittle is a buttery, crispy confection loaded with roasted peanuts. Break the brittle into bite sized pieces and serve for a simple yet satisfying dessert, or package up your peanut candy for gift giving.

Brittle is a type of confection consisting of flat broken pieces of hard sugar candy embedded with nuts such as pecans, almonds, or peanuts, which are usually less than 1 cm thick.

There’s nothing better than homemade candy, some of our favorites include rocky road fudge and buckeye balls. Peanut brittle is also at the top of our list, and it tastes so much better when you make it yourself!

Peanut brittle is my mom’s favorite candy, but to be honest, it’s never really been my thing. I made this recipe for her, and let me tell you, it’s the best peanut brittle EVER. I’ve eaten way too much of it over the last few days, and that’s coming from someone who doesn’t even like this candy!

Why do You Use Baking Soda in Peanut Brittle?

This homemade peanut brittle recipe calls for 1 teaspoon of baking soda to be added right at the end of the cooking process. This is important because of a chemical reaction that results in the perfect peanut brittle texture.

Baking soda creates lots of little air bubbles in the brittle, giving it that perfect crunch that I love. Some peanut brittle recipes use it, some don’t.

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But I really think it’s what puts this peanut brittle over the top and makes it the best.

Tips for Peanut Brittle

  • Not a peanut fan? You can substitute an equal amount of pecans or almonds for the peanuts.
  • Peanut brittle can be stored in an airtight container at room temperature for up to 1 week.
  • Use a bigger pot than you think you need for this recipe, as the sugar mixture expands quite a bit, especially after you add the baking soda.

I love to package peanut brittle in gift tins and give it away to family and friends during the holidays. This candy is so much better than any store-bought brittle I’ve had, and dozens of people ask me for the recipe as soon as they get a taste of this delicious treat!

High Humidity is A Candy-Maker’s Worst Enemy

High humidity can ruin your candy, and I recommend attempting this peanut brittle on a dry day. This time of year when it’s cold and dry is perfect for working on honing your candy-making skills.

The problem with humidity is that the moisture in the air can be re-absorbed into your candy, making it softer.

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This is exactly what we don’t want with peanut brittle. Humidity also slows the cooling process while your candy is setting, increasing the chances of having unwanted crystals form.

Not only can humidity affect your candy while you’re making it, it will also affect how it holds up to being stored. Be sure to store peanut brittle in an airtight container in a cool, dry place. Peanut brittle exposed to moisture/humidity will begin to soften and become sticky.

How to Strech Your Peanut Brittle?

When you pour your candy into your jelly roll pan or cookie sheet, our baking soda (and the fact that the pan has been greased) will encourage it to spread a bit. However, I’ve found that peanut brittle takes a little coaxing to reach the thinness that I prefer.

Once you pour out your brittle, it will be much too hot to touch (even the pan will quickly get very hot thanks to conduction, so don’t touch that either!).

To help spread our peanut brittle, grab a pair of forks and use them to pull the candy apart, spreading it more evenly into your jellyroll pan. You can check out my video beneath the recipe for a demonstration on how I do this.

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16 Servings0 Hours 10 Mins0 Hours 55 Mins


1 cup white sugar
½ cup light corn syrup
¼ teaspoon salt
¼ cup water
1 cup peanuts
2 tablespoons butter, softened
1 teaspoon baking soda


  1. Grease a large cookie sheet. Set aside.
  2. In a heavy 2 quart saucepan, over medium heat, bring to a boil sugar, corn syrup, salt, and water. Stir until sugar is dissolved. Stir in peanuts. Set candy thermometer in place, and continue cooking. Stir frequently until temperature reaches 300 degrees F (150 degrees C), or until a small amount of mixture dropped into very cold water separates into hard and brittle threads.
  3. Remove from heat; immediately stir in butter and baking soda; pour at once onto cookie sheet. With 2 forks, lift and pull peanut mixture into rectangle about 14×12 inches; cool. Snap candy into pieces.

A Trick for Easy Clean-up

Ah, my least favorite part about making candy: the clean-up. You don’t want to run your pot under water while it’s still hot or you run the risk of ruining/warping it, so what’s there to do other than to watch that sticky candy harden onto your pot while you let it cool?

Here’s how I clean my candy-making pot: Let it cool and then fill it over halfway with water. Return your pot to the stovetop and bring to a boil. The candy should re-soften and melt away from the sides.

Don’t forget to re-attach your candy thermometer, and toss in those forks, as I’m sure there’s candy hardened around them, too!

Use a heatproof spatula to help scrape the sides of your pot now that your candy residue is soft and melted. Pour the water/candy residue mixture down your drain, and now allow your pot to cool again before cleaning with soap and water.

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How Long Will Peanut Brittle Last?

Peanut Brittle will keep for up to 2 months if stored properly. Remember, humidity is the biggest enemy of candy. Moisture in the air will quickly soften your peanut brittle, making it tacky and soft.

Store your peanut brittle in an airtight container in a cool, dry place. I recommend placing pieces of wax paper or parchment paper between the candy pieces to keep them from sticking together. I do not recommend placing your peanut brittle in the refrigerator.

Why is my peanut brittle soft?

If your peanut brittle is too soft, you didn’t cook it long enough. It’s important to use a candy thermometer and cook the sugar mixture until it reaches the hard crack stage.

Watch it closely…you may be tempted to take it off the stove sooner, but don’t!!

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How long will peanut brittle last?

You can store peanut brittle in an airtight container at room temperature. If you store it properly you can keep it for about 2 months. This is great for make-ahead gifts!

Can you refrigerate peanut brittle?

There is no need to refrigerate peanut brittle. In order for it to stay crisp you’ll want to keep moisture away from it. It is best stored at room temperature.


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