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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.

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:
- 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.
- Stir in peanuts. Add peanuts and stir the mixture constantly until the candy thermometer temperature reaches 300 degrees F.
- Remove from heat.
- Add remaining ingredients. Immediately stir in butter, baking soda and vanilla. The mixture will foam and change texture.
- 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.
- Cool and enjoy. Allow to cool completely (at least 30 minutes) before breaking apart and eating.

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.

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.

CONSIDER TRYING THESE HOLIDAY TREATS:
- Homemade Caramels
- Caramel Chocolate Dipped Pretzel Rods
- Peppermint Candy Cane Brownies
- Turtle Thumbprint Cookies
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Peanut Brittle
Ingredients
- 2 cups sugar
- 1 cup light corn syrup
- 1/2 cup water
- 2 cups salted roasted peanuts
- 2 tablespoons butter
- 1 1/2 teaspoons soda
- 1 1/2 teaspoons vanilla
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
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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Have you tried this recipe?!
RATE and COMMENT below! I would love to hear your experience.




The best recipe ever. I made a big pan full last night and it’s gone. I will make more this weekend. Perfect candy
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!
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!
Followed this exactly per instructions. It came out so hard could not chew it. Any ideas where I went wrong. Thanks
Your candy got too hot! Make sure to use the thermometer (you might need a new one!)
A hit at Mexican Train. Every last chip was eaten!!
What size sheet pan? I own 3 sizes. Too small and my brittle will be too thick. Too large and my brittle will be too thin. ????
I use a bakers half sheet.
My first peanut brittle attempt failed miserably. Had to throw out the whole batch. This recipe was a rousing success. Yum! Will make this again and again, I’m sure. Thanks
I will not use another brittle recipe. I’ve used pecans instead of peanuts and will be trying cashews today! Thank you so much for sharing ❤️
RE: Cate, such a wonderful idea, using pecans instead of the peanuts. I dislike peanuts so was going to make without but love pecans, walnuts and cashews! Thanks for the tip!
Lauren Allen 🥰
This recipe is a full house hit, thank You for sharing!!
I have made this recipe several times. I’m always surprised how long it takes for thermometer to get to 300* after adding the peanuts. It’s an easy and tasty.
Amazing recipe!!! Easy to make and super yummy!
Any tips how to clean the cooking pan?;)
I make lots of peanut brittle every year, so means doing several batches..after pouring out the brittle mixture,I put the hot pot into my sink and add water while I finish spreading brittle, and when ready to start another batch, the pot is pretty much cleaned as result of the water hitting the heat when put in the sink & letting it sit for a few minutes. .easy peasy 🙂
I tried it and was not successful. It is a little chewy and the brittle is so thick that it is challenging to eat. What did I do wrong? I feel like it took a really long time to get to 300. Is that normal? Does the pan you cook it in need to be deep? Thank you an advance.
Patients is the key with candy. 🙂 I toast my nuts in the oven just to heat them a little before I toss them into the molten brittle. Yes please make sure you use a deep pan as the mixture expands after you toss in the baking soda. Make sure you mix everything properly ao it all gets baking soda (that may be your chewy problem). Also when you pour out the mixture on a baking sheet, use a metal spoon or cake-decorating knife to spread the brittle QUICKLY after pouring. It’s gonna look ugly for a sec but it melts down nicely 🙂 hope this helped good luck!
Delicious and super easy to follow recipe!
I tried your recipe today. My very 1st time ever making peanut brittle or any kind of candy for that matter. I followed the recipe to the letter and it turned out amazing. I am so proud of myself for attempting and getting it right the first time. Thank you for sharing this awesome recipe.
Yes Waynne, I’m guessing that your baking soda was tired. There are thousands of bubbles produced the second it is stirred in vigorously. It could also be that your butter was too cold which will sieze breaking bubbles.