Microwave Peanut Brittle

12.10.2018

The easiest Peanut Brittle recipe you’ll ever make! This version is made in the microwave and it’s practically foolproof. It’s made with basic ingredients and everyone is sure to love it! It has a perfectly crips texture and an irresistible nutty, caramel-like flavor.

Close up image of stake of peanut brittle showing texture.

Easy Homemade Peanut Brittle

You wouldn’t believe how easy it is to make this Microwave Peanut Brittle. Not only that but it has the perfect texture and it tastes delicious! No one will even know you made it in the microwave.

It will make a perfect last minute gift for that friend or neighbor on you list, or for yourself of course :)!

If you like your peanut brittle to have more of the meltaway effect, I like to spread as little as possible so it’s light and crisp. If you like it more of the traditional way just spread it out thin. Either way you are going to love this!

Merry Christmas week everyone!

Ingredients for Peanut Brittle

  • Granulated sugar
  • Light corn syrup
  • Unsalted peanuts
  • Salt
  • Butter
  • Vanilla
  • Baking soda

Whisking sugar and corn syrup in a bowl.

How to Make Peanut Brittle

  • Generously butter a cookie sheet. In a 2-quart (8 cup) glass mixing bowl, using a spoon, stir together granulated sugar and corn syrup.
  • Microwave mixture on HIGH power 4 minutes.

Stirring peanuts into mixture in mixing bowl.

  • Stir in peanuts and salt, microwave on HIGH power 3 1/2 minutes.

Adding butter and vanilla mixture in mixing bowl.

  • Mix in butter and vanilla extract, stirring until butter is melted.
  • Microwave on HIGH power 1 1/2 minutes.

Adding baking soda to mixture in mixing bowl.

  • Stir in baking soda (mixture will become fluffy and foamy).
  • Pour and and lightly spread out onto prepared baking sheet

Spreading finished peanut brittle mixture onto baking sheet.

Allow to cool at room temperature then break into pieces once set.

Breaking peanut brittle into pieces after cooling.

More Delicious Easy Treats You’ll Love!

Microwave Peanut Brittle | Cooking Classy

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Microwave Peanut Brittle

4.83 from 17 votes

The easiest Peanut Brittle recipe you'll ever make! This version is made in the microwave and it's practically foolproof. It's made with basic ingredients and everyone is sure to love it! It has a perfectly crips texture and an irresistible nutty, caramel-like flavor.

Servings: 20
Prep Time 10 minutes
Cook Time 9 minutes
Total Time 19 minutes

Ingredients

  • 1 cup granulated sugar
  • 1/2 cup light corn syrup
  • 1 cup unsalted roasted peanuts
  • 1/4 tsp salt
  • 1 Tbsp butter
  • 1 tsp vanilla extract
  • 1 tsp baking soda

Instructions

  1. Generously butter a cookie sheet. In a 2-quart (8 cup) glass mixing bowl, using a spoon, stir together granulated sugar and corn syrup. Microwave mixture on HIGH power 4 minutes.
  2. Stir in peanuts and salt, microwave on HIGH power 3 1/2 minutes.
  3. Mix in butter and vanilla extract, stirring until butter is melted. Microwave on HIGH power 1 1/2 minutes*.

  4. Stir in baking soda (mixture will become fluffy and foamy). Pour and and lightly spread out onto prepared baking sheet.**

  5. Allow to cool at room temperature then break into pieces once set.

Recipe Notes

  • Cook times may vary slightly depending on microwave wattage. Watch for a golden brown color near the end.
  • Note that the less you spread the lighter the brittle will be, or more air bubbles it will have, so if you prefer it like so then do as little spreading as possible. If you prefer it flatter then spread it out thin.
  • Recipe source: adapted from allrecipes.com
Nutrition Facts
Microwave Peanut Brittle
Amount Per Serving
Calories 111 Calories from Fat 36
% Daily Value*
Fat 4g6%
Cholesterol 1mg0%
Sodium 102mg4%
Potassium 48mg1%
Carbohydrates 18g6%
Sugar 16g18%
Protein 1g2%
Vitamin A 20IU0%
Calcium 5mg1%
Iron 0.2mg1%
* Percent Daily Values are based on a 2000 calorie diet.
Course: Treat
Cuisine: American
Keyword: Peanut Brittle
Calories: 111 kcal
Author: Jaclyn

55 comments

  • angie hewitt: I made two batches and neither batch hardened? What am I doing wrong? August 11, 2019 at 5:19pm Reply

    • Jaclyn: So sorry to hear that, most likely it just needs to be heated longer. Do you have a low watt microwave? I’d try adding another minute or two. August 11, 2019 at 5:45pm Reply

  • Bonita: Now how do you clean the damn bowl??? March 13, 2019 at 1:31pm Reply

    • Jaclyn: Let it soak in water overnight with a little dish soap then it should be easier to clean. If not add a little Clorox, my moms trick that will clean just about anything. March 13, 2019 at 4:31pm Reply

  • Sandee: This was so easy to make and my boyfriend loves it too! Thank you for sharing this recipe with us! January 5, 2019 at 4:57pm Reply

  • Kathy: Adjusted time for 1000 watt microwave. 3&1/2, 3, then 1&1/2. Perfect! December 24, 2018 at 1:49pm Reply

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