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This easy homemade Peanut Brittle is an old-fashioned sweet, hard candy made on the stovetop with six simple ingredients and roasted peanuts.  It's a family favorite during the holidays but can be enjoyed any time of year!

There's just something special about old-fashioned recipes like peanut brittle.  My other favorite old-fashioned recipes include Grandma's Oatmeal Cake, Baked Apples and Baked Rice Pudding.

A plate with pieces of peanut brittle stacked on it.

Peanut Brittle

Every holiday season my grandmother used to make a few batches of peanut brittle.  She always dropped a container at our house and it lasted all season.  I can't help but think of her when I think of this Peanut brittle recipe.

Peanut Brittle is a smooth, flat candy (similar to toffee), with peanuts in it, that is cooked on the stovetop and poured onto a sheet pan to cool.  Once it cools it's broken into small individual-size pieces of hard candy and lasts at room temperature for several weeks.

Homemade Peanut Brittle in 6 steps:

  1. Cook sugar mixture.  Add sugar, and water to a medium saucepan and stir well. Stir in corn syrup. Cook mixture over medium heat (don’t be tempted to turn the heat up!), stirring occasionally, until it comes to a gentle boil. Cook until temperature reaches 250F.
  2. Stir in peanuts.  Add peanuts and stir the mixture constantly until the candy thermometer temperature reaches 300 degrees F.
  3. Remove from heat. 
  4. Add remaining ingredients.  Immediately stir in butter, baking soda and vanilla. The mixture will foam and change texture.
  5. Pour into sheet pan.  Carefully pour the hot mixture onto a sheet pan lined with parchment paper.  Use a knife or spoon to quickly (and carefully!) spread the mixture into an even layer.
  6. Cool and enjoy. Allow to cool completely (at least 30 minutes) before breaking apart and eating.

Process photos for making peanut brittle in a saucepan with a candy thermometer, and the finished peanut brittle poured onto a baking sheet.

Important Tips:

Temperature is Key!

You will definitely want to use a candy thermometer to make peanut brittle as the proper temperature of the candy is crucial to ensure you have peanut brittle that's not too soft or chewy and not too hard.

Baking Soda?

Baking soda is a crucial ingredient that can't be substituted in this recipe.  Just as in homemade syrup or caramel corn, baking soda causes a unique chemical reaction (basically a lot of rising foam) that is crucial in creating the right texture in peanut brittle.  If you make it without baking soda but you will notice the brittle is a bit harder to bite through.

Precaution!!

Wear gloves and be CAREFUL! The candy gets VERY hot and can easily spill onto your hands or wrists during pouring if you're not careful.  Make sure to use cooking/oven mitts (that you don't mind getting dirty) and be sure to tilt the pan away from you and use a spatula to scrape the hot mixture onto the sheet pan.

Overhead view of cooled peanut brittle in a half sheet pan.

Corn Syrup Substitutes:

If you need to substitute corn syrup in this peanut brittle recipe, you can substitute cup for cup of:

  • honey
  • light molasses
  • agave nectar
  • brown rice syrup

You could also substitute a combination of these ingredients and please note that with any of these substitutions, the peanut brittle will have a lightly different taste, texture and consistency as well.

Making Ahead, Storing and Freezing Peanut Brittle:

To make ahead: Peanut brittle can be made several days or even weeks in advance.  It stays fresh at room temperature for 6-8 weeks.

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.  Allow the brittle to cool completely and store it in a freezer safe, airtight container.

A baker's half sheet pan filled with broken up pieces of homemade peanut brittle.

CONSIDER TRYING THESE HOLIDAY TREATS:

 

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4.96 from 1606 votes

Peanut Brittle

Author: Lauren Allen
My Grandma's old-fashioned Peanut Brittle recipe is so easy to make on the stovetop with just six simple ingredients and roasted peanuts.
Prep: 5 minutes
Cook: 20 minutes
Cool time: 30 minutes
Total: 55 minutes
Servings: 50

Ingredients 
 

Instructions 

  • Line a sheet pan with parchment paper. Set aside.
  • Measure out peanuts, butter, baking soda and vanilla and have them ready.
  • Add sugar, and water to a medium saucepan and stir well. Stir in corn syrup. Cook mixture over medium heat (don’t be tempted to turn the heat up!), stirring occasionally, until it comes to a gentle boil.
  • Attach your candy thermometer to the edge of the pot, and make sure it is submerged in the liquid, but not touching the bottom of the pot. Cook, stirring occasionally until temperature reaches 250°F (121°C).
  • Add the peanuts and stir the mixture constantly until the candy thermometer temperature reaches 300 degrees F.
  • Remove mixture from heat and immediately stir in butter, baking soda and vanilla. The mixture will foam and change texture.
  • Carefully pour the hot mixture onto the prepared pan and use a knife or spoon to quickly (and carefully!) spread the mixture into an even layer.
  • Allow to cool completely (at least 30 minute) before breaking apart and eating.
  • Store the completely cooled peanut brittle in an airtight container.

Notes

To make ahead: Peanut brittle can be made several days or even weeks in advance.  It stays fresh at room temperature for 6-8 weeks weeks.
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.  Allow the brittle to cool completely and store it in a freezer safe, airtight container.

Nutrition

Calories: 88kcal, Carbohydrates: 14g, Protein: 2g, Fat: 3g, Saturated Fat: 1g, Cholesterol: 1mg, Sodium: 34mg, Potassium: 45mg, Fiber: 1g, Sugar: 13g, Vitamin A: 14IU, Calcium: 7mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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About The Author

Lauren Allen

Welcome! I’m Lauren, a mom of four and lover of good food. Here you’ll find easy recipes and weeknight meal ideas made with real ingredients, with step-by-step photos and videos.

4.96 from 1606 votes (1,486 ratings without comment)
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lamsonbd@hotmail.com
9 months ago

5 stars
The best recipe ever. I made a big pan full last night and it’s gone. I will make more this weekend. Perfect candy

Kelly T
1 year ago

5 stars
This recipe is fantastic! I made it exactly as written and it turned out perfectly. The taste and texture were perfect! I am so glad that I found a great recipe for peanut brittle. Thank you!

Rayli
1 year ago

5 stars
I make this at least twice during the holiday season every year! I have double batched it and had my pans ready so it wasn’t an issue. My father in law loves this- he’s German and says it’s the best peanut brittle he’s had in years! I added the peanuts too early last time I made it, but it still turned out fine. Will be doing a double batch in a few days!

Scarlett
2 months ago

Does the butter need to be softened or cold? Thanks!p

Admin
Stacy Popham
2 months ago
Reply to  Scarlett

The butter can be at room temperature or straight from the fridge – it doesn’t matter. You’re stirring it into the hot candy mixture, so it will melt instantly either way.

Marie
2 months ago

2 stars
I followed this recipe to a T and when I laid it out to cool and hardened, there was bubbles everywhere 🙁

Valinda
2 months ago

Could you use golden syrup? I thought I had white light but nope

Admin
Stacy Popham
2 months ago
Reply to  Valinda

Golden syrup could work but it’ll change the flavor and texture a bit. Golden syrup is thicker and has a caramel-like taste compared to light corn syrup which is pretty neutral. Your brittle might end up slightly softer and have that golden syrup flavor, but honestly it might be delicious in a different way. If you’re gonna use it, swap it 1:1 for the corn syrup. Worth a shot if that’s what you’ve got!

Cheri Powers
2 months ago

5 stars
This was so fun! I’ve never made peanut brittle before so I really had to practice my patience, especially waiting for the temp to get to 250. It was exciting watching the color change from a clearish to light brown color. I did make the mistake of buying unsalted peanuts, but I did see you mentioned to someone else to sprinkle some salt on top after it’s poured out and smoothed out. I’m looking forward to tasting it after it’s cooled. Thanks for this simple and easy to follow recipe (especially telling us to get everything prepped before hand)!

Karen
2 months ago

5 stars
Made this this morning. Turned out perfect and so easy to make

A.L.
2 months ago

4 stars
Good instructions. Brittle set perfectly. But needs some salt. I used salted Spanish peanuts and salted butter, still too bland.

Louise
3 months ago

Hi Lauren- I inadvertently grabbed unsalted peanuts. Can they be used or should I replace with salted? Thanks!!

Admin
Rachel Aldridge
3 months ago
Reply to  Louise

Unsalted peanuts will work fine. The brittle will just taste a little less salty so you can sprinkle a tiny pinch of salt over the finished candy if you want to balance it out. Hope it turns out great!

Kathy
3 months ago

Approximately how many pieces in one batch please

Admin
Rachel Aldridge
3 months ago
Reply to  Kathy

It serves 50!

Melissa
3 months ago

5 stars
Best!

Debbie
3 months ago

I really want to make this, but I have 3 different sizes of cookie sheets. What size cookie sheet works for this recipe?

Admin
Rachel Aldridge
3 months ago
Reply to  Debbie

I use a 13×18″ baking sheet for this recipe