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Home » Desserts

The Best Microwave Peanut Brittle Recipe

Published: Sep 4, 2024

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​This microwave peanut brittle recipe is such a fun twist on regular nut brittle, except it is made in the microwave instead of on the stovetop! It uses simple ingredients to create a holiday sweet treat that everyone will be excited to receive. Plus, it is so versatile and can be customized to your liking by mixing the nuts you use in this specific recipe. 

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pieces of the Microwave peanut brittle recipe

This is the best Microwave nut brittle recipe ever!

I personally love no bake desserts, especially when it’s as simple as this easy microwave peanut brittle! It is made with a few basic ingredients that everyone should have on hand around the holidays and it comes together in no time. making it the perfect option if you want to spend less time in the kitchen and more time enjoying yourself with your family!

Plus this sweet treat is a great homemade holiday gift, just bag it up nicely in a holiday themed bag, add a cute tag and tie it with a ribbed to really impressive whoever you are gifting it to. 

Since you are here and love peanut dessert recipes, check out this Peanut butter and Jelly cookie sandwich or these Crumbl peanut butter blossom cookies. Plus here is another bonus microwave recipe, my favorite Microwave Lemon Curd Recipe!

Microwave peanut brittle recipe ingredients

Ingredients for this Microwave Peanut Brittle Recipe

Here are the ingredients you will need to make this brittle candy. Make sure to scroll down to the recipe card for the full detailed ingredient measurements. 

  • Corn syrup: Light corn syrup prevents crystallization, ensuring your brittle stays smooth and crunchy
  • Granulated sugar: White sugar caramelizes to give the brittle its classic hard texture and rich color. It also will have that caramel-like flavor that you will absolutely adore!
  • Butter: Butter adds a touch of creaminess and richness to balance the sweetness.
  • Peanuts: Peanuts provide the perfect crunch and nutty flavor that defines this brittle.
  • Vanilla extract: Vanilla extract adds a warm, aromatic note that enhances the peanut flavor
  • Salt: A pinch of salt amplifies the sweetness and depth of the brittle’s flavor
  • Baking soda: Baking soda creates tiny bubbles, giving the brittle its airy, crunchy texture. We are using a small amount here but it will give up that perfectly crisp texture, don’t worry!
Microwave peanut brittle recipe in a jar

How to make this delicious microwave brittle recipe

This is how you can make this delicious holiday treat. Make sure to scroll down to the recipe card for the full detailed instructions! 

  1. The first step is to prep your baking sheet and spatula—get ready for quick action! 
  2. Mix sugar, corn syrup, and salt in a large microwave-safe bowl.
  3. Microwave until it bubbles and turns a golden color.
  4. ​Stir in butter, peanuts, and vanilla—watch them melt together.
  5. Microwave again until it’s deep golden brown.
  6. Add baking soda—watch it foam!
  7. Pour the hot mixture and spread it quickly on your greased baking sheet.
  8. Let the brittle set (this is the hardest part!), break, and enjoy your crunchy treat!
mixed ingredients in a bowl
mixed sugar ingredients in a bowl
mixed ingredients with peanuts in a bowl
mixed ingredients with peanuts in a bowl getting heated
mixed ingredients with peanuts in a bowl getting cooled
finished product cooling on a pan

Why do you need to make this recipe?

  • This is a great recipe for Christmas time when you are a little short on time. 
  • This recipe can be made using whatever nuts you like, not just peanuts! Get creative :)! 
  • It is also a great homemade gift, and an even better last-minute gift because of how quick it is! 

Frequently Asked Questions – FAQ

How should I store the peanut brittle to keep it fresh?

You can store your peanut brittle in an airtight container at room temperature for up to 3 weeks. 

Make sure your container is airtight because if any humidity gets to your brittle for extended periods of time it will turn soft and sticky.

Microwave peanut brittle recipe pieces getting held up by a hand

Can I freeze my peanut brittle?

Of course! Freezing it might make life much easier. Allowing you to make your homemade peanut brittle and save it for the Christmas season! To do so, store it in an airtight container (to protect it from any moisture) and freeze for up to 3 months.

Can I use a silicone mat instead of parchment paper?

Absolutely, I love using a silicone mat because it means less waste, and it’s an easy clean up too. So win-win!

overhead view of Microwave peanut brittle recipe

Can I make this recipe without a candy thermometer?

yes! This method is designed to reach the right temperature by following the specified times and visual cues like color, texture changes, and smell.

Why did my brittle have bubbles/uneven texture?

Stirring the mixture too much or not enough can introduce air bubbles. We want to make sure that we are stirring everything together gently and consistently between each heating intervals to prevent this issue. 

overhead view of Microwave peanut brittle recipe on a pan

Can I double this recipe?

Since we are cooking this brittle in the microwave, it is not recommended to double this recipe. Your best bet is to make multiple different batches. This way they all turn out well every time. 

How do I clean the microwave safe bowl after making the peanut brittle?

The cooked sugar can be a little tought to clean, but don’t worry! I got you covered 🙂

All you have to do is soak the bowl is hot soapy water for a few minutes to dissolve the residue. This will make it much easier to scrub that sugar off, and in turn keep your bowls squeaky clean!

Microwave peanut brittle recipe in a jar

The Best Microwave Peanut Brittle Recipe

Microwave peanut brittle recipe in a jar

Microwave Peanut Brittle Recipe

​This microwave peanut brittle is such a fun twist on regular nut brittle, except it is made in the microwave instead of on the stovetop!
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Prep Time 4 minutes mins
Cook Time 6 minutes mins
Total Time 10 minutes mins
Course Dessert
Cuisine American
Servings 12 servings
Calories 184 Calories

Ingredients
 
 

  • 1 cup granulated sugar
  • ½ cup light corn syrup
  • 1 cup peanuts dry roasted, salted or unsalted
  • ¼ teaspoon salt
  • 1 tablespoon unsalted butter
  • 1 & ½ teaspoon vanilla extract
  • 1 teaspoon baking soda

Instructions
 

  • Line a baking sheet with parchment paper and set it aside. Have a spatula ready to spread the brittle once it’s cooked.
  • In a large, microwave-safe glass bowl, combine the sugar, corn syrup, and salt. Stir until the mixture is evenly combined.
    1 cup granulated sugar, ½ cup light corn syrup, ¼ teaspoon salt
  • Microwave the mixture on high for 4 minutes. The mixture will start to bubble and turn light golden.
  • Carefully remove the bowl from the microwave (it will be very hot). Stir in the butter, peanuts, and vanilla extract until fully melted and incorporated.
    1 cup peanuts, 1 tablespoon unsalted butter, 1 & ½ teaspoon vanilla extract
  • Return the bowl to the microwave and cook for another 2-3 minutes until the mixture turns a deep golden brown. Keep a close eye on it to avoid burning.
  • Quickly stir in the baking soda. The mixture will foam and bubble up, which is normal. Stir until the baking soda is fully mixed in.
    1 teaspoon baking soda
  • Immediately pour the mixture onto the prepared baking sheet. Use a spatula to spread it out into a thin layer as quickly as possible.
  • Let the brittle cool completely, about 30 minutes. Once it’s hardened, break it into pieces.
  • Store the peanut brittle in an airtight container at room temperature. It will keep for up to 3 weeks.

Nutrition

Calories: 184CaloriesCarbohydrates: 30gProtein: 3gFat: 7gSaturated Fat: 2gPolyunsaturated Fat: 2gMonounsaturated Fat: 3gTrans Fat: 0.04gCholesterol: 3mgSodium: 151mgPotassium: 92mgFiber: 1gSugar: 28gVitamin A: 29IUCalcium: 15mgIron: 0.5mg
Keyword brittle in the microwave, Microwave peanut brittle recipe, peanut brittle in the microwave
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If you enjoyed this microwave peanut brittle recipe, make sure to pin it for later!

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Filed Under: Desserts, Holidays, No bake Tagged With: microwave peanut brittle recipe, peanut brittle

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Hey there! My name is Chahinez, and I’m the brains behind the blog, Lifestyle of a Foodie. LOAF was started back in 2018 during my last semester ...

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