Microwave Peanut Brittle

Name: Microwave Peanut Brittle
Prep time: 5 min
Cook time: 7 min
Total time: 12 min
Cuisine: American
Ingredients: 1 cup granulated sugar; ½ cup light corn syrup (Karo Syrup); 1 tablespoon unsalted butter; 1 teaspoon vanilla extract; 1 cup cocktail peanuts; 1 teaspoon baking soda

By:

Sarah

Published:

December 11, 2025

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Microwave peanut brittle is one of those delightful treats that seems a bit magical whenever you make it. I mean, how cool is it that you can whip up something so crunchy and sweet in just a few minutes? The best part is that it doesn’t require any fancy equipment or skills—just your trusty microwave! Picture the warm, nutty aroma wafting through your kitchen as you create this perfect snack. Whether you want a cozy night in or need a homemade gift, this recipe has got you covered. So grab your ingredients, and let’s create some yummy microwave peanut brittle!

Why This Recipe Works

Microwave cooking is pure magic when it comes to candy-making, and this recipe showcases just how easy it can be. The beauty of microwave peanut brittle lies in its simplicity. With a few basic ingredients, you’re set to create a crunchy, sweet treat that’s fun to make. Plus, you skip the tricky candy thermometer, thanks to the magic blend of sugar and corn syrup, which gives you that classic brittle texture. This recipe truly is accessible for all skill levels—whether you’re a beginner or a seasoned pro, you’ll shine in the kitchen.

Why You’ll Love This Microwave Peanut Brittle

You won’t believe how fast you can have fresh peanut brittle at home! In just under 7 minutes, you’ll have a delightful batch that’s perfect for sharing with friends or giving as gifts. The rich flavors of butter and vanilla enhance the cocktail peanuts, making every bite completely irresistible. And if you’re feeling a little adventurous, this recipe allows for variations. You can easily tailor it to match your personal taste or impress your friends and family with a unique spin.

Ingredients

1 cup granulated sugar
½ cup light corn syrup (Karo Syrup)
1 tablespoon unsalted butter
1 teaspoon vanilla extract
1 cup cocktail peanuts
1 teaspoon baking soda

Preparing the Mixture

Combine Sugar and Corn Syrup

First things first! Grab a microwave-safe bowl and combine the granulated sugar and light corn syrup. Give it a good stir to make sure they mix evenly.

Microwave the Mixture

Now it’s time to bring this mixture to life! Microwave it on high for about 5 minutes. Just a quick tip: keep an eye on it so it doesn’t overflow. You’ll want to catch it at just the right time!

Add Butter, Vanilla, and Peanuts

Once the microwave beeps, carefully take out the bowl (don’t forget, it’s going to be hot!). Add in the unsalted butter, vanilla extract, and your cocktail peanuts. Mix it all together until it’s thoroughly combined.

Final Microwaving

Now, pop that bowl back in the microwave for another 1 minute and 30 seconds. This is where the magic continues!

Stir in Baking Soda

With your bowl out again, it’s time to quickly stir in the baking soda. You’ll notice it bubbling up! This reaction is what transforms your mixture to become light and airy—just what you want for perfect brittle.

Pour and Spread

Next, grab some parchment paper, aluminum foil, or a Silpat mat. Pour the bubbling mixture onto it and spread it out into a rectangle shape using a spatula.

Allow to Cool

Now comes the hardest part: patience! Let the peanut brittle cool for at least 1 hour or until it’s completely hardened. Once it’s ready, break it into pieces and savor the fruits of your labor!

Serving Suggestions

Your microwave peanut brittle is now ready to shine! Serve it as a crunchy snack during movie nights or family gatherings. Or, package it in a cute tin or box for a thoughtful homemade gift during the holidays!

Tips for Success

Be super cautious when handling that hot mixture. It can bubble and splatter, so keep your distance until it cools down.
Using a glass bowl for microwaving is a great choice. It withstands heat well and allows you to watch your mixture without any fuss.

Variations

If you’re feeling adventurous, mix things up! Instead of cocktail peanuts, try adding cashews or almonds for a different flavor profile. A pinch of sea salt can also elevate the sweetness of the brittle—yum!

Storage Tips

To keep your peanut brittle fresh and crunchy, store it in an airtight container at room temperature. If it happens to soften, a quick chill in the refrigerator can help it regain that perfect crunch.

Pairing Ideas

For a delightful combo, enjoy your peanut brittle with dark chocolate. The sweet-salty combination will win hearts! It also pairs wonderfully with a hot cup of coffee or tea for a cozy afternoon snack.

FAQs

Q1: Can I use other nuts besides peanuts?
A1: Yes, you can! Experiment with almonds, cashews, or walnuts, but make sure they are raw and unsalted for the best results.

Q2: How should I store leftover peanut brittle?
A2: Simply keep your peanut brittle in an airtight container at room temperature. This way, it stays fresh for longer!

Q3: What if I don’t have light corn syrup?
A3: No worries! You can use agave syrup instead, or even make a homemade version with just sugar and water.

Q4: Can I make this recipe vegan?
A4: Absolutely! Swap the butter for a vegan butter alternative and check that your other ingredients are vegan-friendly too.

Q5: How long does the peanut brittle last?
A5: When stored correctly, your peanut brittle can last up to two weeks at room temperature.

This microwave peanut brittle recipe not only treats your taste buds but opens the door for fun creativity in the kitchen. Whether you keep it for yourself or share, homemade sweets like this one always bring a bit of joy. Happy cooking!