Microwave Peanut Brittle Recipe

Making candy, especially around the holidays might seem intimidating, but this microwave peanut brittle recipe simplifies the process and delivers perfect results without the need for special equipment.

Traditionally, peanut brittle is made on the stovetop, requiring constant stirring and a candy thermometer to get everything to the right temperature. Using a microwave takes away a lot of that guesswork.

It’s quicker, easier, and less messy. Just be mindful of your microwave’s power level because all microwaves cook at different rates, which can affect the outcome.

Although, this recipe will make a little more than other recipes that are designed for ‘cooking for two’. However, when it comes to homemade candy, small batches aren’t always practical.

Peanut brittle is one of those treats that works best when you make enough to share or to store for later. It’s a great option to gift family and friends during the holidays or to set out on your Christmas Cookie Tray.

Ingredients Required To Make Microwave Peanut Brittle

• Sugar: The base of most candy recipes, sugar is responsible for the brittle texture.
• Light Corn Syrup: Helps keep the candy from crystallizing and gives it that smooth, glossy texture.
• Salt: A small amount balances the sweetness and enhances the flavors.
• Peanuts: These cook along with the sugar mixture, roasting as they heat. Raw peanuts work best because they’re unsalted and uncooked, allowing them to fully absorb the flavors during the cooking process. However you can also use dry roasted (unsalted) peanuts and add them towards the end of the cooking process.
• Butter: Adds a touch of richness and keeps the brittle from being too dry.
• Vanilla Extract: Provides a warm, sweet flavor that pairs well with peanuts.
• Baking Soda: Creates a chemical reaction that introduces tiny air bubbles into the candy, giving it that classic brittle texture.

Step-by-Step Instructions To Make Peanut Brittle In A Microwave

1. Prepare Your Workspace

Before you start, line a cookie sheet with parchment paper or lightly grease it. Candy hardens quickly, so having this ready ahead of time is crucial. Also, grab two metal forks for spreading the mixture because it’s too sticky to handle directly.

2. Start the Sugar Mixture

Combine the sugar, light corn syrup, and salt in a 2-quart glass bowl. Microwave on HIGH for 5 minutes. Keep an eye on it, as microwaves can vary in power. My microwave is 1100 watts, so adjust your cook time accordingly if yours is different.

3. Add the Peanuts

After the first 5 minutes, carefully stir in the raw peanuts. Microwave for another 3 minutes. This step allows the peanuts to roast and infuse the candy with their flavor.

4. Add the Butter and Vanilla

Stir in the butter and vanilla extract (and dry roasted peanuts if you are using them instead of raw peanuts). Microwave the peanut brittle mixture for another 45 seconds to 1 minute, or until the candy reaches a rich peanut butter color.

5. Finish with Baking Soda

Quickly stir in the baking soda. The mixture will bubble up as the baking soda reacts with the hot sugar, creating the airy texture that makes brittle light and crisp.

6. Spread the Mixture

Pour the candy onto your prepared cookie sheet and use two forks to spread it into a thin layer. Work quickly, as the candy will begin to harden almost immediately.

7. Cool and Break

Allow the brittle to cool completely. Once hardened, break it into random-sized pieces.

Important Things To Know When Making Microwave Peanut Brittle

1. Work Quickly: Once the baking soda is added, the mixture starts to set fast. Have your cookie sheet and tools ready to go before you start.
2. Adjust for Microwave Power: If your microwave has a lower wattage, you might need to add a few seconds to each cooking step. If it’s higher, reduce the time slightly to avoid burning.
3. Use a Glass Bowl: A microwave-safe glass bowl is ideal because it evenly distributes the heat.

Nut Substitutions

If you’re making this recipe for someone with a peanut allergy or just want to try something different, here are a few alternatives:

• Almonds: Use raw almonds for a similar result. They’ll toast nicely during the cooking process.
• Cashews: These work well, but since cashews are softer, the texture will be slightly different.
• Pecans: Their rich, buttery flavor pairs wonderfully with brittle.
• Sunflower Seeds: For a nut-free option, sunflower seeds can provide a similar crunch. Make sure they’re raw and unsalted.

Each substitution may slightly change the flavor and texture, but the process stays the same.

Stovetop Option

If you don’t have a microwave or prefer the stovetop method, this recipe adapts easily. Use a heavy-bottomed saucepan to melt the sugar, corn syrup, and salt over medium heat.

Stir constantly to prevent burning. Add the peanuts and cook until the mixture turns golden brown. Then remove the pan from the heat, stir in the butter, vanilla, and baking soda, and quickly spread it onto your prepared cookie sheet.

*If you have a candy thermometer and want to make it using precise directions, follow this Stove Top Peanut Brittle Recipe.

Storing Peanut Brittle

Peanut brittle keeps well for weeks when stored in an airtight container at room temperature. Place a piece of wax or parchment paper between layers to keep them from sticking together.

Avoid storing it in humid areas, as moisture can make the candy sticky.

Microwave Peanut Brittle Recipe

*A printable recipe card is located at the bottom of this article which contains the specific measurements, temperatures and cook times. However, continue reading below to learn about more helpful tips about this specific recipe.

INGREDIENTS

• 1 cup sugar
• 1/2 cup light corn syrup
• 1/8 teaspoon salt
• 1 1/2 cups shelled raw peanuts
• 1 tablespoon butter
• 1 teaspoon vanilla extract
• 1 teaspoon baking soda

INSTRUCTIONS

Microwave first 3 ingredients in a 2-quart glass bowl on HIGH 5 minutes. *see note

Stir in the raw peanuts and microwave for 3 more minutes.

Once the time is up, stir in the butter and vanilla and microwave 45 seconds or until candy is the color of peanut butter.

Stir in baking soda (mixture will bubble).

Working quickly, spread hot candy in a thin layer onto a cookie sheet lined with parchment paper (or a lightly greased baking sheet) using two metal forks.

Cool completely and then break candy into random size pieces.

This microwave peanut brittle recipe is a fantastic addition to any holiday treat spread. It’s simple, fast, and produces professional-looking results without any fancy equipment. Whether you’re making it to share or just to enjoy at home, it’s sure to become a favorite.

For another quick and easy recipe, be sure to try my Christmas Crack Candy Recipe which is another family favorite in my house!

Enjoy! Mary

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