Microwave Peanut Brittle : A Simple Homemade Treat for Every Sweet Tooth

If you’re craving something sweet, crunchy, and nostalgic—but don’t want to spend an hour in the kitchen—this Microwave Peanut Brittle recipe is your new go-to. With only a few simple ingredients and just minutes of prep, this classic candy comes together effortlessly, thanks to the power of the microwave.

Whether you’re making gifts for the holidays, prepping for a bake sale, or just feeding your sweet tooth, this recipe delivers all the flavor of old-fashioned peanut brittle without the fuss of stove-top thermometers or candy-making stress. It’s perfect for beginners, busy parents, or anyone looking to whip up something impressive in under 15 minutes.

And if you’re a fan of no-bake and easy sweet treats, you’ll also want to check out these Pumpkin Truffles or the festive Snickerdoodle Protein Bites.

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Why You’ll Love This Microwave Peanut Brittle Recipe

This peanut brittle recipe is more than just quick—it’s practically foolproof. Here’s why it’s so beloved:

• Fast and fuss-free: No stove, no candy thermometer, and no waiting around for precise temperatures.
• Simple ingredients: Everything you need is probably already in your pantry.
• Crunchy, buttery, and sweet: Classic flavor and texture in a fraction of the time.
• Perfect for gifting: Wrap it up for the holidays, birthdays, or just-because treats.
• Beginner-friendly: Great for kids, teens, or anyone just starting out with homemade candy.

Looking for more sweet but simple snack ideas? Don’t miss these Mini Pumpkin Bread with Cinnamon Swirl loaves, another homemade treat that’s perfect for sharing.

Ingredients for Microwave Peanut Brittle

One of the best things about Microwave Peanut Brittle is how few ingredients you actually need. Here’s everything required:

• 1 cup (200g) granulated sugar
• ½ cup (160g) light corn syrup
• 1 cup (135g) dry roasted peanuts (salted or unsalted)
• 1 tablespoon unsalted butter
• 1 teaspoon vanilla extract
• 1 teaspoon baking soda

That’s it—six basic pantry staples come together to create a crackly, buttery, golden treat that satisfies every sweet tooth. These are what we call simple ingredients that pack a lot of flavor and crunch.

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Kitchen Equipment You’ll Need

You don’t need special candy-making gear for this homemade peanut brittle recipe. Here’s what you’ll want on hand:

• Microwave-safe glass bowl (preferably 2-quart or larger)
• Heatproof silicone or wooden spatula
• Measuring cups and spoons
• Baking sheet lined with parchment paper or silicone mat
• Oven mitts or heat-safe gloves (the mixture gets hot!)

This recipe is as beginner-friendly as other microwave or no-bake treats like these No-Bake Pumpkin Pie Balls or Fruit Dip.

How to Make Microwave Peanut Brittle – Step-by-Step

Step 1: Mix the base
In a microwave-safe glass bowl, stir together the sugar and corn syrup until well blended.

Step 2: First microwave session
Microwave the mixture on high for 4 minutes. It should be bubbling and slightly golden.

Step 3: Add the peanuts
Stir in the dry roasted peanuts and microwave for another 3 to 4 minutes. The mixture will darken slightly.

Step 4: Add butter and vanilla
Carefully stir in the butter and vanilla. Microwave for 1 more minute.

Step 5: Final step – add baking soda
Immediately stir in the baking soda. The mixture will foam and expand—this creates that light, airy texture in the brittle.

Step 6: Spread and cool
Quickly pour the mixture onto your prepared baking sheet and spread it out evenly. Let it cool completely (about 30–45 minutes) before breaking into pieces.

Pro tip: The final mixture will be very hot. Use caution when handling and spreading.

This method is incredibly efficient and just as delicious as traditional brittle-making techniques.

Tips for the Perfect Peanut Brittle in the Microwave

• Use a deep bowl to prevent overflow during bubbling stages.
• Work fast after adding the baking soda—the mixture sets quickly.
• Use parchment paper or a silicone mat to avoid sticking.
• Let it cool fully before breaking—otherwise it may bend or crumble.
• Clean up fast—rinse your bowl in hot water while the mixture is still warm for easier cleanup.

Need more quick and fun kitchen ideas? Try these Pumpkin Cheesecake Cookies for a melt-in-your-mouth holiday dessert.

Variations of Peanut Brittle to Try

While the classic version is always a hit, you can tweak this brittle recipe with fun flavor spins:

Almond Brittle
Swap peanuts for dry roasted almonds.

Spiced Brittle
Add ½ teaspoon cinnamon or cayenne pepper for a sweet-and-spicy version.

Chocolate Drizzle
Once cooled, drizzle with melted chocolate for a gourmet finish.

Coconut Crunch
Add 2 tablespoons shredded coconut during the final stir for tropical flavor.

Festive Mix-In
Add crushed peppermint or sprinkles for holidays—just like we do in Cauldron Cookies or Halloween Snack Mix.

These variations are also perfect for themed party snacks or edible gifts.

Common Mistakes to Avoid in Peanut Brittle Recipes

Even a simple microwave recipe has a few potential pitfalls:

• Overheating: Watch your microwave’s wattage; times may vary slightly.
• Undercooking: If your brittle is chewy instead of crisp, it wasn’t cooked long enough.
• Skipping baking soda: This is essential for the right texture and aeration.
• Using the wrong bowl: Thin plastic containers can melt or warp. Use heatproof glass.
• Not spreading fast enough: Once the brittle starts to cool, it becomes difficult to spread.

Stick to the process and your homemade peanut brittle will be a crunchy success every time.

How to Store Homemade Peanut Brittle

Proper storage ensures your microwave peanut brittle stays crisp and tasty:

• Room temperature: Store in an airtight container for up to 2 weeks.
• Avoid humidity: Moisture is brittle’s enemy. Keep it in a cool, dry place.
• Do not refrigerate: Cold air can soften the candy and affect texture.
• Great for gifting: Package in clear bags or tins lined with wax paper.

Need more homemade gift ideas? Try making Pumpkin Fluff Dip or Cheesecake-Stuffed Chocolate Chip Cookies.

Serving Suggestions and Gift Ideas

Peanut brittle is delicious on its own, but here are some fun ways to serve and share:

• Holiday treat trays: Pair with cookies and Mini Pumpkin Pie Cups.
• Party snack bowls: Serve alongside pretzels and Apple Nachos.
• Edible gifts: Package in mason jars or festive tins for thoughtful homemade gifts.
• Ice cream topping: Crumble over vanilla or chocolate ice cream for added crunch.
• After-dinner treat: Serve with coffee or tea for a light, sweet finish.

This brittle also pairs wonderfully with Lavender Lemonade or your favorite non-alcoholic beverage.

Is Microwave Peanut Brittle the Easiest Homemade Treat?

Compared to traditional stovetop versions, the microwave method wins for speed and simplicity. You don’t need a candy thermometer, and the margin for error is much lower. You also won’t need to watch boiling sugar for 30 minutes—just stir, microwave, and spread.

For anyone new to candy making, this is one of the best homemade treats to start with, much like No-Bake Nutella Cookies—simple ingredients, quick results.

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Frequently Asked Questions About Peanut Brittle

Can I use honey instead of corn syrup?
Honey will change the flavor and may cause the brittle to be softer. Stick to corn syrup for best results.

Why didn’t my brittle harden?
It may not have been microwaved long enough. Be sure to follow the times closely and microwave on high.

Can I use other nuts?
Yes! Try almonds, pecans, or cashews. Just make sure they’re dry roasted.

How long does homemade peanut brittle last?
When stored properly, it stays fresh and crisp for up to 2 weeks.

Can I double the recipe?
It’s not recommended in a microwave, as it can overflow. Make two separate batches instead.

Final Thoughts and Sweet Tooth Satisfaction

If you’re looking for an easy, classic candy that delivers on crunch, sweetness, and nostalgia, this Microwave Peanut Brittle is it. It’s simple, fast, and requires just a handful of simple ingredients. Whether you’re gifting it, sharing it, or sneaking bites yourself, this sweet treat is sure to impress.

Want more easy snacks and desserts like this? Explore our collection of Easy Nutella Recipes, or treat yourself to a cozy bite of Pumpkin Oatmeal Cookies.

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