Go Back
+ servings
Peanut Brittle Featured 2

Best Microwave Peanut Brittle

With secret flavor ingredients and extra peanuts, this really is the best microwave peanut brittle recipe! Ultra-easy with no candy thermometer required.
Course Holiday Recipes
Keyword best peanut brittle recipe, how to make peanut brittle, microwave peanut brittle
Prep Time 5 minutes
Cook Time 7 minutes
Total Time 12 minutes
Servings 24 pieces
Calories 58kcal
Author Marsha Maxwell


  • 1 level teaspoon baking soda see notes for options
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1 cup granulated sugar
  • 1/2 cup light corn syrup
  • 2 teaspoons vanilla extract
  • 1 tablespoon butter
  • 1 1/2 cups roasted salted peanuts see notes to substitute unsalted peanuts


  • Spray a rimmed baking sheet with cooking spray. Set aside.
  • In a small bowl, combine baking soda, cinnamon, and nutmeg. Set aside.
  • Pour sugar and corn syrup into a large microwave-safe glass bowl. Stir using a sturdy spatula until well combined.
  • Microwave sugar mixture on high for 3 1/2 minutes, then stir. Return to microwave and cook for 3-5 more minutes until the mixture is a medium golden color. Check sugar mixture once each minute. Sugar scorches easily at this stage.
  • Remove bowl from microwave. Working quickly, add the vanilla, butter, and prepared spice mixture. Stir until combined. The candy mixture will bubble up and become airy.
  • Add the peanuts. Stir only enough to incorporate the peanuts with the candy mixture.
  • Working quickly, pour the brittle mixture onto the baking sheet. Use a silicone spatula or a spoon sprayed with cooking spray to press and spread the mixture out thinly. Alternatively, you can press and stretch the candy with your hands wearing heatproof food gloves.
  • Let the peanut brittle cool completely, about 1 hour. Break into pieces of your desired size (usually about 2 inches square). Store peanut brittle in an airtight container.


Note 1: For this recipe, you can use between 1 teaspoon and 1 1/2 teaspoons of baking soda. More baking soda creates a more airy texture, but if there's too much baking soda, you will be able to taste it in the candy.
Note 2: If you prefer to use unsalted roasted peanuts for this recipe, add 1/4 teaspoon salt to the baking soda/spice mixture.


Serving: 1piece (1/24 recipe) | Calories: 58kcal | Carbohydrates: 14g | Fat: 1g | Cholesterol: 1mg | Sodium: 61mg | Sugar: 14g