Recipe By Marie Berron
Published Jun 19th
Prep 10m Cook 10m Additional - Ready In 20m
Servings 1 batch Calories 740.3

Easy buttery cashew brittle made in the microwave in just about 10 minutes. Every time I make this it disappears very fast. Warning: once you start you can’t stop.

Recipe Ingredients

  • 1 teaspoon butter, or as needed
  • 2 cups salted roasted cashews
  • 1 cup white sugar
  • ½ cup light corn syrup
  • 1 tablespoon butter
  • ½ teaspoon butter flavoring
  • 1 teaspoon pure vanilla extract
  • 1 teaspoon baking soda

Cooking Directions

  1. 1 Lightly butter a baking sheet with 1 teaspoon butter.
  2. 2 Mix cashews, sugar, and corn syrup in a medium microwave-safe bowl. Microwave on high for 4 minutes. Remove, stir, and microwave for another 3 minutes. Remove and add 1 tablespoon butter, vanilla extract, and butter flavoring; stir to combine. Microwave for 2 minutes.
  3. 3 Remove from the microwave and add baking soda; stir and fold until mixture is fluffy. Work quickly and spread mixture evenly on the prepared baking sheet. Let it sit until completely cooled. Break into pieces and keep in a airtight bag or container.

Nutrition Facts

  • Calories 740.3
  • Carbohydrate 104 g
  • Cholesterol 10.3 mg
  • Fat 35.6 g
  • Fiber 2.1 g
  • Protein 10.5 g
  • Saturated Fat 8.7 g
  • Sodium 806.2 mg
  • Sugar 64.5 g

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Chef's Notes

It was tested in a 1100 watt microwave. Adjust your time with the wattage of your microwave.


  1. This is the best brittle! I used organic roasted peanuts and added 1/2 extra teaspoon of baking soda to make it fluffier/crispier. I didn't have butter flavor because I didn't know it existed. lol. I also kept the buttered baking sheet warm to help with spreading. It is light and crispy and very tasty! Thank - Read more ...
  2. Excellent as written. This will be my go to regardless of what nut I am making the brittle with. The bowl gets HOT so I recommend silicone to keep your hands protected. Something helpful I will mention is that 2 cups of nuts is exactly an 8 ounce can of cashews.