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 :)!

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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!

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Microwave Peanut Brittle

4.79 from 14 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.

Course: Treat
Cuisine: American
Keyword: Peanut Brittle
Prep Time: 10 minutes
Cook Time: 9 minutes
Total Time: 19 minutes
Servings: 20
Calories: 111 kcal
Author: Jaclyn

Ingredients

  • 1 cup granulated sugar
  • 1/2 cup light corn syrup
  • 1 cup unsalted 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*
Total Fat 4g 6%
Cholesterol 1mg 0%
Sodium 102mg 4%
Potassium 48mg 1%
Total Carbohydrates 18g 6%
Sugars 16g
Protein 1g 2%
Vitamin A 0.4%
Calcium 0.5%
Iron 0.9%
* Percent Daily Values are based on a 2000 calorie diet.

41 comments

  • Cindy: Mine was burned. Be careful of cooking temp on your microwave. Will lower cooking time and try again.😔 November 16, 2018 at 7:57am Reply

  • K-Linn: IV tried quitea few receipts, but this is like the one I’ve been using for the past 15 yr.s; by far, the fastest-easiest-best tasting brittle. (Once u get to know the microwave wattage ur using and adjust time adoringly-BAM! Brittle in 10 min.s!

    Experiment**Use different combination add-ins: coconut, pretzels, dried fruits, even crushed candies: peppermint s, caramel and (careful) bark.

    Tip** I try not to stop too many times while cooking. (Cools quickly)
    Combine steps but vanilla and soda MUST GO LAST. I also add a little more Butter and soda for lighter, tastier crunch. November 6, 2018 at 6:09pm Reply

  • ANN HALE: It tasted overcooked, perhaps because my microwave is 1100 watts.

    I will try it again, lowering cooking times by a minute or so during each step. If someone else has adjusted their cooking time, I would appreciate any hints.

    I used a silpat mat instead of butter/pam on the cookie sheet and it worked perfectly. January 16, 2018 at 10:05am Reply

    • Lisa: I made this same recipe like this – 3 minutes for the sugar – add the peanuts and do another three, add the butter/vanilla and do 1 minute 15 sec and it worked like a charm! I have a 1000w Jenn Air microwave. March 28, 2018 at 10:56am Reply

      • Carolyn: I followed this modification and WOW, perfect brittle in minutes. Light brown, not burned. Awesome recipe. November 22, 2018 at 10:28am Reply

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