Microwave Peanut Brittle
This microwave peanut brittle recipe is easy to make and full of flavor. It's a crowd-pleaser that everyone loves.
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Table of Contents
  1. Old-Fashioned Peanut Brittle Recipe
  2. Why We Love This Peanut Brittle Recipe
  3. Ingredients
  4. Substitutions and Additions
  5. Recommended Tools to Make this Recipe
  6. How to Make Homemade Peanut Brittle
  7. Tips
  8. Storage Tips
  9. Frequently Asked Questions
  10. Other Easy Homemade Candy Recipes
  11. Microwave Peanut Brittle Recipe

This delicious Peanut Brittle is an old-fashioned sweet, hard candy that’s made in the microwave. It’s a holiday favorite in our family, but it’s also fantastic any time of year!

peanut brittle hero image

Old-Fashioned Peanut Brittle Recipe

This microwave peanut brittle will be your new go-to during this holiday season! Forgot to pick up ingredients? Forgot to make a dessert for a gathering? Need a quick gift to give? No worries! You can throw this peanut brittle together super quickly, with ingredients that you most likely already have in the pantry at home.

The best part of all? This peanut brittle is made in the microwave! All you have to do is throw together all of your ingredients, microwave them, and in no time at all you have a crunchy and yummy treat. It’s seriously that simple.

Why We Love This Peanut Brittle Recipe

  • Delicious homemade candy
  • Quick and easy to make.
  • 7 pantry staple ingredients
  • Kid-friendly and approved.
  • Makes a great DIY holiday gift for friends and family! Just put some in a holiday tin or bag with a bow!
stacked peanut brittle

Ingredients

  • Sugar
  • Salt
  • Karo syrup
  • Raw peanuts
  • Vanilla
  • Butter
  • Baking soda

Substitutions and Additions

  • Peanuts: I like this recipe best with peanuts, but sometimes if I don’t have peanuts on hand and I do have some other kind of nuts like almonds or pecans, I will throw those in instead!
  • 1½ quart microwavable dish
  • Cookie sheet

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How to Make Homemade Peanut Brittle

  1. In a 1 ½ quart microwave dish, place the sugar, salt, syrup, and nuts. Microwave them all together on high for about 4 minutes. Remove from microwave and give it a quick stir.
    Microwave Peanut Brittle ingredients in glass dish
  2. Return the mixture to the microwave and microwave again for 3 ½ minutes longer.
  3. Add vanilla and butter and stir well.
    adding vanilla and butter to the Microwave Peanut Brittle mixture
  4. Microwave for one more minute.
  5. Remove from microwave and add baking soda to the mixture. Stir well.
    add baking soda to Microwave Peanut Brittle mixture
  6. Pour onto a well-buttered cookie sheet.
    spread the peanut brittle mixture into cookie sheet
  7. Tilt the cookie sheet to spread the peanut brittle to a thin layer.
  8. Let cool for at least one hour, until solid. Then, breaking into pieces to serve.
    break Microwave Peanut Brittle into pieces

Tips

  • Use caution! Everything is very HOT. Removing the bowl from the microwave, pouring the peanut brittle onto the cookie sheet, even tilting the cookie sheet to spread the peanut brittle in the cooke sheets gets warm to the touch underneath!
  • You can get creative with your brittle! Don’t feel like you have to stick to peanuts. You can switch up your recipe and replace the peanuts with any type of nut! 
  • You have to work a little bit quickly when making this recipe in the microwave. You never want to let the mixture cool off for too long (until the very end). So stirring, and putting it back in the microwave in a fast manner is important!

Storage Tips

  • To Store: Peanut Brittle stays fresh at room temperture for up to 8 weeks. Store in an airtight container (humidity will affect the texture). Do not refridgerate.
  • To Freeze: Let the peanut brittle cool completly and store in an airtight container in the freezer for up to 3 months.
peanut brittle in a bowl

Frequently Asked Questions

What is Peanut Brittle?

Peanut brittle is a type of candy treat that is made of flat broken pieces of hard sugar. Usually brittle has some type of nut in it as well. Traditionally, the mixture of sugar is heated up to a very high temperature, then the peanuts or other ingredients are added. The mixture is left to harden before being broken into small pieces.

Why is there baking soda in peanut brittle?

Baking soda creates lots of little air bubbles which helps to create the proper texture for peanut brittle!

top view peanut brittle in a bowl

Other Easy Homemade Candy Recipes

5 from 3 votes
Microwave Peanut Brittle

Microwave Peanut Brittle

Serves — 12
This microwave peanut brittle recipe is easy to make and full of flavor. It's a crowd-pleaser that everyone loves.
Prep Time 5 mins
Cook Time 6 mins
Cool Time 1 hr
Total Time 1 hr 11 mins

Ingredients
  

  • 1 cup sugar
  • Pinch of salt
  • ½ cup Karo syrup
  • 1 cup raw peanuts
  • 1 tsp vanilla
  • 2 tbsp butter
  • 1 tsp baking soda

Instructions
 

  • In a 1½ quart microwavable dish place the sugar, salt, syrup and nuts. Microwave on high for 4 minutes. Remove and give a quick stir.
  • Return to microwave and microwave for 3 ½ minutes longer.
  • Add vanilla and butter and stir well.
  • Microwave for one minute more.
  • Remove from microwave and stir in baking soda. Mix well.
  • Pour onto a well-buttered cookie sheet.
  • Tilt the cookie sheet to spread the peanut brittle to a thin layer.
  • Let cool at least one hour until solid. Break into pieces to serve.

Jenn’s Notes

Tips:
  • Use caution! Everything is very HOT. Removing the bowl from the microwave, pouring the peanut brittle onto the cookie sheet, even tilting the cookie sheet to spread the peanut brittle in the cooke sheets gets warm to the touch underneath!
  • You can get creative with your brittle! Don’t feel like you have to stick to peanuts. You can switch up your recipe and replace the peanuts with any type of nut! 
  • You have to work a little bit quickly when making this recipe in the microwave. You never want to let the mixture cool off for too long (until the very end). So stirring, and putting it back in the microwave in a fast manner is important!
Storage:
  • To Store: Peanut Brittle stays fresh at room temperture for up to 8 weeks. Store in an airtight container. Do not refridgerate.
  • To Freeze: Let the peanut brittle cool completly and store in an airtight container in the freezer for up to 3 months.

Nutrition Info

Calories: 192kcal | Carbohydrates: 30g | Protein: 3g | Fat: 8g | Saturated Fat: 2g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 5mg | Sodium: 120mg | Potassium: 92mg | Fiber: 1g | Sugar: 28g | Vitamin A: 58IU | Calcium: 16mg | Iron: 1mg
Jennifer Fishkind

About Jenn

Jenn is a mom to three beautiful boys, wife to an amazing husband, social influencer and blogger. I love all things easy recipes, easy crafts, all things hacks, traveling EVERYWHERE and feeding my Pinterest addiction!

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