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Microwave Peanut Brittle | Creme de la Crumb

Microwave Peanut Brittle

Sweet and salty, crunchy peanut brittle candy - easy to make in your microwave in just a few minutes!
Course Dessert
Cuisine American
Prep Time 5 minutes
Cook Time 10 minutes
0 minutes
Total Time 15 minutes
Servings 8 servings
Calories 324kcal
Author Tiffany


  • 1 ½ cups dry roasted peanuts
  • 1 cup granulated sugar
  • ½ cup light corn syrup
  • teaspoon salt
  • 1 teaspoon vanilla extract
  • 1 tablespoon butter
  • 1 teaspoon baking soda


  • Grease a baking sheet, and set aside.
  • In a glass bowl, combine peanuts, sugar, corn syrup, and salt. Cook in microwave for 6 to 7 minutes on High power. Mixture should be bubbly and peanuts browned.
  • Stir in butter and vanilla then cook 2 to 3 minutes longer. ( see note)
  • Quickly stir in baking soda (just until mixture is foamy). Pour immediately onto greased baking sheet.
  • Allow cool 15 minutes or until set. Break into pieces (I just use a butter knife to crack it apart), and store in an airtight container.


If you know that your microwave tends to cook faster and hotter (I've had a microwave like this before, it always cooked fast and very hot!) then you should reduce cooking time by a bit so you don't burn it.


Calories: 324kcal | Carbohydrates: 48g | Protein: 7g | Fat: 14g | Saturated Fat: 2g | Cholesterol: 1mg | Sodium: 380mg | Potassium: 189mg | Fiber: 2g | Sugar: 43g | Vitamin A: 3IU | Calcium: 20mg | Iron: 1mg