Microwave Peanut Brittle Recipe
Introduction
Microwave Peanut Brittle is a quick and easy treat that delivers the classic crunchy, sweet, and nutty flavor you love. Ready in under 40 minutes, this homemade candy is perfect for satisfying your sweet tooth without using the stove.

Ingredients
- 1 cup granulated sugar
- 1/2 cup light corn syrup
- 1 cup peanuts (dry roasted, salted or unsalted)
- 1/4 teaspoon salt
- 1 tablespoon unsalted butter
- 1 1/2 teaspoon vanilla extract
- 1 teaspoon baking soda
Instructions
- Step 1: Line a baking sheet with parchment paper and set aside. Have a spatula ready to spread the brittle once it’s cooked.
- Step 2: In a large, microwave-safe glass bowl, combine the sugar, corn syrup, and salt. Stir until evenly combined.
- Step 3: Microwave the mixture on high for 4 minutes until it starts to bubble and turns light golden.
- Step 4: Carefully remove the hot bowl from the microwave. Stir in the butter, peanuts, and vanilla extract until fully melted and incorporated.
- Step 5: Return the bowl to the microwave and cook for another 2–3 minutes until the mixture turns deep golden brown. Watch closely to avoid burning.
- Step 6: Quickly stir in the baking soda. The mixture will foam and bubble. Stir until the baking soda is fully mixed in.
- Step 7: Pour the mixture immediately onto the prepared baking sheet. Use the spatula to spread it into a thin, even layer swiftly.
- Step 8: Let the brittle cool completely, about 30 minutes. Once hardened, break it into pieces.
- Step 9: Store the peanut brittle in an airtight container at room temperature.
Tips & Variations
- Use salted peanuts for an extra burst of flavor or unsalted if you prefer less salt.
- Swap peanuts for other nuts like almonds or cashews for a different twist.
- Be careful with microwave times as wattages vary; check frequently to avoid burning.
Storage
Store the peanut brittle in an airtight container at room temperature for up to 3 weeks. To refresh the crunch, let it sit at room temperature before serving. Avoid storing in humid areas as moisture can soften the brittle.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use a different nut instead of peanuts?
Yes, you can substitute peanuts with almonds, cashews, or pecans depending on your preference. Just use the same quantity.
What should I do if the brittle is too sticky after cooling?
If the brittle is sticky, it may not have cooked long enough or was stored in a humid place. Try reheating slightly or store it in a dry, airtight container.
PrintMicrowave Peanut Brittle Recipe
This Microwave Peanut Brittle recipe is a quick and easy way to enjoy a classic crunchy sweet treat. Using just a microwave and simple ingredients like sugar, corn syrup, and peanuts, you can make perfectly golden, crispy peanut brittle in less than 40 minutes. The addition of baking soda creates a light and airy texture, while vanilla extract adds depth of flavor. It’s a perfect homemade snack or gift for holidays and special occasions.
- Prep Time: 5 minutes
- Cook Time: 9 minutes
- Total Time: 35 minutes
- Yield: About 20 servings 1x
- Category: Dessert
- Method: Microwaving
- Cuisine: American
Ingredients
Ingredients
- 1 cup granulated sugar
- 1/2 cup light corn syrup
- 1 cup peanuts (dry roasted, salted or unsalted)
- 1/4 teaspoon salt
- 1 tablespoon unsalted butter
- 1 & 1/2 teaspoon vanilla extract
- 1 teaspoon baking soda
Instructions
- Prepare baking sheet: Line a baking sheet with parchment paper to prevent sticking and set it aside. Have a spatula ready to spread the brittle immediately after cooking.
- Mix sugar base: In a large microwave-safe glass bowl, combine granulated sugar, light corn syrup, and salt. Stir well until the mixture is evenly combined to ensure even cooking.
- Initial cooking: Microwave the sugar mixture on high power for 4 minutes. During this time, the mixture will start to bubble and turn a light golden color, signaling it’s beginning to caramelize.
- Add peanuts and flavor: Carefully remove the hot bowl from the microwave. Stir in unsalted butter, peanuts, and vanilla extract thoroughly until the butter is fully melted and all ingredients are incorporated.
- Final cooking: Return the bowl to the microwave and cook for an additional 2 to 3 minutes, watching closely for the mixture to turn a deep golden brown, which indicates caramelization without burning.
- Add baking soda: Quickly stir in the baking soda. The mix will foam and bubble as it reacts, creating a light texture. Stir until the soda is fully incorporated.
- Shape brittle: Immediately pour the hot mixture onto the prepared baking sheet. Spread it out into a thin, even layer using the spatula. Act quickly to shape before it hardens.
- Cool and harden: Allow the peanut brittle to cool completely on the baking sheet, about 30 minutes. Once hardened, break it into irregular pieces for serving.
- Storage: Store the peanut brittle in an airtight container at room temperature to maintain freshness. It will keep well for up to 3 weeks.
Notes
- Be cautious handling the hot sugar mixture to avoid burns.
- Use a microwave-safe glass bowl to prevent cracking or shattering.
- Do not skip the baking soda step as it creates the characteristic light, airy texture of brittle.
- If peanut allergies are a concern, substitute with other nuts like almonds or cashews.
- Ensure the peanut brittle is cooled completely before breaking to get clean pieces.
- Store in airtight containers to avoid moisture which can soften the brittle.
Keywords: microwave peanut brittle, easy peanut brittle, quick peanut brittle, homemade peanut brittle, microwave candy

