If you’re craving a sweet treat that’s crunchy, nutty, and irresistibly golden, Peanut Brittle (Microwave) is going to win your heart—and possibly the hearts of everyone around you! This classic candy transforms a handful of everyday pantry staples into a beautiful, crackly confection in mere minutes, all thanks to the magic of your microwave. Whether you’re making a homemade gift or simply satisfying a late-night craving, this recipe delivers old-fashioned flavor with modern-day convenience. Get ready for a totally addictive treat that’s as fun to make as it is to eat!

Ingredients You’ll Need
The beauty of Peanut Brittle (Microwave) lies in its simplicity—each ingredient plays a starring role in creating that perfect snap and rich caramel flavor. Don’t skip or substitute, and you’ll be amazed at what you can whip up in no time!
- Granulated sugar: The essential base, melting into a sweet, glassy crunch.
- Light corn syrup: Prevents crystallization and gives the brittle its signature shine and chew.
- Salted roasted peanuts: Adds a nutty, salty contrast that balances the sweetness perfectly.
- Butter: A little bit of richness goes a long way for depth and smooth texture.
- Vanilla extract: Just a splash brings a warm, aromatic note to the candy.
- Baking soda: The magic ingredient for that bubbly, airy texture—don’t skip this step!
How to Make Peanut Brittle (Microwave)
Step 1: Prep Your Pan
Start by greasing a baking sheet or lining it with parchment paper. You’ll want it ready to go because the mixture sets quickly once it’s done. Having your pan prepared means you won’t lose precious seconds when it’s time to pour out the molten brittle.
Step 2: Combine Sugar and Corn Syrup
Grab a large microwave-safe bowl—bigger than you think you’ll need, as the mixture bubbles up! Combine the granulated sugar and light corn syrup, stirring just until blended. The corn syrup keeps the sugar from recrystallizing, giving you that flawless, glassy finish.
Step 3: Microwave the Base
Pop the bowl in the microwave on high for 4 minutes. Watch as the mixture starts to bubble and turn clear. This is when the sugar begins to melt and caramelize, laying the foundation for the perfect Peanut Brittle (Microwave).
Step 4: Add Peanuts and Cook Again
Carefully stir in the salted roasted peanuts—feel free to use a heatproof spatula! Return the bowl to the microwave for another 3 to 4 minutes, until the mixture becomes a light golden brown. The nuts will toast a bit more, intensifying their flavor.
Step 5: Mix in Butter and Vanilla
Take the bowl out (it’ll be hot!) and quickly stir in the butter and vanilla extract. Mix until everything is smooth and combined. The aroma at this point is absolutely mouthwatering—don’t linger too long, as timing is key!
Step 6: Final Microwave Blast
Microwave the mixture for one last minute. This step ensures everything is fully melted and blended, setting you up for that signature brittle texture. It’s normal for the color to deepen ever so slightly here.
Step 7: Add Baking Soda and Pour
Immediately stir in the baking soda. The mixture will foam up and lighten in color—this reaction creates all those delicate air pockets that make Peanut Brittle (Microwave) so delightfully crunchy. Quickly pour the foamy mixture onto your prepared pan and spread it evenly with a spatula. Work fast, as it sets up in seconds!
Step 8: Cool and Break
Let the brittle cool completely, about 30 minutes. Once it’s hardened, break it into bite-sized pieces. The result: golden shards of sweet, salty, nutty perfection!
How to Serve Peanut Brittle (Microwave)

Garnishes
Peanut Brittle (Microwave) is a star all on its own, but if you’re feeling a bit extra, a sprinkle of flaky sea salt or a drizzle of melted chocolate right after cooling takes it to a whole new level. Even a dusting of cocoa powder or a few chopped roasted peanuts can add a little visual flair and extra flavor.
Side Dishes
This brittle pairs beautifully with a scoop of vanilla ice cream, a cup of hot coffee, or a creamy hot chocolate. It’s also a fantastic companion to a simple fruit platter, as the sweet crunch contrasts perfectly with fresh, juicy flavors.
Creative Ways to Present
For gifting, pile pieces into a mason jar tied with a ribbon or tuck them into festive treat bags. For party platters, scatter brittle among cookies and chocolates for a textured, colorful display. You can even chop it up and sprinkle over cakes or yogurt for a gourmet touch!
Make Ahead and Storage
Storing Leftovers
Peanut Brittle (Microwave) stores like a dream. Keep your brittle in an airtight container at room temperature and it’ll stay crisp and fresh for up to two weeks. Avoid humidity, as moisture can make it sticky and chewy.
Freezing
While not usually necessary, you can freeze brittle if you want to make it far in advance. Place pieces in a freezer-safe bag with layers of wax paper between them. Thaw at room temperature—just know that some stickiness may develop from condensation.
Reheating
Brittle is best enjoyed as is, but if it gets a little sticky, you can refresh it by spreading pieces on a baking sheet and popping them in a 250°F (120°C) oven for about 5 minutes. Let cool completely to restore that satisfying crunch.
FAQs
Why did my Peanut Brittle (Microwave) turn out sticky?
This usually happens if there’s too much humidity in the air or if the brittle wasn’t cooked long enough. Make sure your sugar mixture reaches a golden color, and store in an airtight container to prevent moisture from getting in.
Can I use other nuts instead of peanuts?
Absolutely! Almonds, cashews, or even mixed nuts are delicious options in Peanut Brittle (Microwave). Just be sure they’re roasted and salted for the best flavor and texture.
How do I prevent the mixture from hardening too quickly?
Have your baking sheet ready and work quickly once you add the baking soda. The mixture sets fast, so preparation is key to getting it spread before it hardens.
Is it safe to make brittle in the microwave?
Yes, as long as you use a large, microwave-safe bowl and keep a close eye on the cooking times. The microwave method is not only quick but also minimizes the risk of burning compared to stovetop caramelizing.
Can I double the recipe?
You can, but be cautious! Larger batches may not heat evenly in the microwave, making burning more likely. If you need more, it’s safer to make multiple single batches of Peanut Brittle (Microwave) instead.
Final Thoughts
If you’ve never tried making homemade candy, Peanut Brittle (Microwave) is the perfect place to start. It’s quick, delightfully crunchy, and wildly satisfying to crack into golden shards you made yourself. Give it a whirl—your sweet tooth (and your friends) will thank you!
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Peanut Brittle (Microwave) Recipe
- Total Time: 14 minutes (plus 30 minutes cooling)
- Yield: 16 servings 1x
- Diet: Vegetarian
Description
This Microwave Peanut Brittle recipe offers a quick and easy way to make delicious homemade candy with a perfect crunchy texture and rich peanut flavor. Using simple ingredients like sugar, corn syrup, and roasted peanuts, this dessert can be whipped up in just minutes, ideal for holiday treats or satisfying sweet cravings.
Ingredients
Main Ingredients
- 1 cup granulated sugar
- 1/2 cup light corn syrup
- 1 cup salted roasted peanuts
- 1 teaspoon butter
- 1 teaspoon vanilla extract
- 1 teaspoon baking soda
Instructions
- Prepare baking sheet: Grease a baking sheet or line it with parchment paper and set aside to prevent sticking when pouring the brittle.
- Cook sugar mixture: In a large microwave-safe bowl, combine the granulated sugar and light corn syrup. Microwave on high for 4 minutes until the mixture begins to bubble, ensuring the sugar dissolves properly.
- Add peanuts: Stir in the salted roasted peanuts, then microwave for an additional 3 to 4 minutes until the mixture turns a light golden brown, developing the characteristic brittle color and flavor.
- Add butter and vanilla: Quickly stir in the butter and vanilla extract until the mixture is smooth and well combined, then microwave for 1 more minute to incorporate flavors thoroughly.
- Incorporate baking soda: Remove the bowl from the microwave and immediately stir in the baking soda. The mixture will become foamy, which helps give the brittle its airy texture.
- Pour and spread: Quickly pour the hot mixture onto the prepared baking sheet and spread it evenly with a spatula to your desired thickness before it hardens.
- Cool and break: Let the brittle cool completely for about 30 minutes, then break it into pieces for serving and storage.
Notes
- Microwave times can vary based on your microwave’s wattage; watch carefully to avoid burning the sugar.
- Store the peanut brittle in an airtight container at room temperature for up to 2 weeks to maintain freshness and crunch.
- Prep Time: 5 minutes
- Cook Time: 9 minutes
- Category: Dessert, Candy
- Method: Microwave
- Cuisine: American
Nutrition
- Serving Size: 1 piece
- Calories: 150
- Sugar: 18 g
- Sodium: 120 mg
- Fat: 6 g
- Saturated Fat: 1 g
- Unsaturated Fat: 5 g
- Trans Fat: 0 g
- Carbohydrates: 23 g
- Fiber: 1 g
- Protein: 3 g
- Cholesterol: 0 mg