Easy Microwave Peanut Brittle

Microwave Peanut Brittle From Candy
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  • Total: 16 mins
  • Prep: 10 mins
  • Cook: 6 mins
  • Yield: 1/2 Pound (serves 8)
Nutritional Guidelines (per serving)
212 Calories
5g Fat
43g Carbs
2g Protein
See Full Nutritional Guidelines Hide Full Nutritional Guidelines
Nutrition Facts
Servings: 1/2 Pound (serves 8)
Amount per serving
Calories 212
% Daily Value*
Total Fat 5g 6%
Saturated Fat 1g 3%
Cholesterol 0mg 0%
Sodium 186mg 8%
Total Carbohydrate 43g 16%
Dietary Fiber 1g 3%
Protein 2g
Calcium 12mg 1%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

This microwave peanut brittle recipe is made with Karo syrup, sugar, dry roasted peanuts, margarine, and vanilla.

These directions are for a 1000 watt microwave oven. If your wattage is lower, adjust the time accordingly. See Candy's note below the recipe.


  • 1 cup sugar
  • 1/2 cup white Karo syrup
  • 1/8 teaspoon salt
  • 1/2 cup dry roasted peanuts
  • 1 teaspoon margarine
  • 1 teaspoon baking soda
  • 1 teaspoon vanilla extract

Steps to Make It

  1. Gather the ingredients.
  2. Line a baking sheet with foil and butter or spray with nonstick cooking spray.
  3. In a microwave safe bowl, mix sugar, Karo corn syrup, and salt. Cook in the microwave oven (100% power) for about 4 minutes, or just until amber colored.
  4. Remove the candy from the oven (it's very hot, be very careful) and add the peanuts; cook about l to 2 minutes longer.
  5. Remove it from oven add the margarine, baking soda, and vanilla all at once, and mix thoroughly and spread it out on the prepared baking sheet, ( this sets up quickly).
  6. Cool, then break the peanut brittle into pieces and put in a container with tight-fitting lid.

Candy's Note: "My microwave is 1000 watts, so I really don't leave my brittle in too long. I make this all the time - it is very easy and delicious. I usually take the margarine, baking soda, and vanilla and put it together in a bowl, so I can work quickly with it. I also spray my pan in advance, so that it will be ready for me."

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