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4.61 from 69 votes

Microwave Peanut Brittle Recipe

Easy peanut brittle recipe that is made in your microwave for a delicious Christmas candy or DIY gift.
Prep Time5 mins
Cook Time10 mins
Total Time15 mins
Course: Dessert
Cuisine: American
Servings: 16
Calories: 166kcal
Author: Julie Evink


  • 1 cup granulated sugar
  • ½ cup corn syrup
  • teaspoon salt
  • 1 ½ cup unsalted peanuts
  • 1 Tablespoon butter
  • 1 teaspoon vanilla extract
  • 1 teaspoon baking soda


  • Butter a rimmed cookie sheet and set aside.
  • In a glass bowl stir together sugar, syrup and salt in a glass safe bowl. Microwave for 3.5 minutes.
  • Stir in the peanuts and microwave for an additional 3 minutes or until light brown.
  • Stir in butter and vanilla and microwave an additional 1.5 minutes.
  • Add baking soda and gently stir until light and foamy. Quickly pour mixture onto prepared cookie sheet. Gently rotate the pan to spread mixture until it's a 1/2'' thick.
  • Let the peanut brittle cool until it's set. Break the candy into small pieces and store in an airtight container.



  • Have your cookie sheet buttered before you make the peanut brittle because it sets up fast. 
  • You can also use parchment paper to pour your brittle onto. 
  • Wondering why we use baking soda? Baking soda makes the brittle tender by adding air bubbles, giving it a porous texture.
  • To store this candy simply layer the brittle in an air tight container and place parchment or wax paper between the layers. 
  • Peanut Brittle will keep in an airtight container for up to two months so it's a great make ahead candy.
  • Switch things up and substitute the peanuts for cashews, walnuts, hazelnuts or pecans. 


Calories: 166kcal | Carbohydrates: 24g | Protein: 3g | Fat: 8g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.03g | Cholesterol: 2mg | Sodium: 100mg | Potassium: 88mg | Fiber: 1g | Sugar: 21g | Vitamin A: 22IU | Calcium: 10mg | Iron: 0.2mg