If you have a sweet tooth and love that perfect combination of crunch, caramelized sugar, and nutty goodness, this Peanut Brittle Recipe is exactly what you’ve been searching for. It’s a delightful classic candy that balances the rich flavor of roasted peanuts with a crisp, buttery caramel shell. Whether you’re making it as a gift, a holiday snack, or just a treat for yourself, this recipe turns simple pantry staples into an irresistible, crunchy delight that everyone will adore.

Ingredients You’ll Need
Gathering these ingredients is a breeze, and each one plays a crucial role in creating that wonderful texture and rich flavor of peanut brittle. From the sweetness of granulated sugar to the toasty crunch of roasted peanuts, every component works harmoniously to produce the perfect candy.
- Granulated sugar: The backbone of the brittle, it caramelizes to provide that irresistible crunch and sweetness.
- Light corn syrup: Helps prevent the sugar from crystallizing, ensuring a smooth, glossy finish.
- Vanilla extract: Adds a warm, aromatic note that deepens the flavor complexity.
- Unsalted butter: Brings richness and helps create a tender, buttery texture.
- Baking soda: Causes the mixture to bubble up, creating tiny air pockets that make the brittle light and crisp.
- Roasted unsalted peanuts: The star of the show, providing that perfect nutty crunch in every bite.
- Salt: Enhances all the flavors and balances the sweetness perfectly.
How to Make Peanut Brittle Recipe
Step 1: Prepare Your Baking Sheet
Start by lining a baking sheet with parchment paper or a silicone baking mat. This prevents sticking and makes it easy to lift the brittle once it has set. Having this ready beforehand ensures a smooth process when your hot candy mixture is done.
Step 2: Dissolve the Sugar Mixture
In a medium saucepan, combine the granulated sugar, light corn syrup, and a pinch of salt over medium heat. Stir constantly until the sugar has completely dissolved. This careful stirring prevents graininess and sets the stage for a silky, clear candy base.
Step 3: Reach the Hard Crack Stage
Once the sugar dissolves, stop stirring and allow the mixture to boil until it hits 300°F (150°C) on a candy thermometer. This is a critical step because this temperature marks the hard crack stage, ensuring your brittle will have the perfect snap and crunch.
Step 4: Add Butter, Vanilla, and Baking Soda
Remove the pan from the heat immediately once the right temperature is reached. Quickly stir in the butter, vanilla extract, and baking soda. Be ready—it will bubble up vigorously! This reaction creates a lovely airy texture, making your brittle lighter and more enjoyable to bite.
Step 5: Incorporate the Peanuts
Fold in the roasted peanuts quickly and thoroughly, coating them evenly with that luscious syrup. This step guarantees every crunchy peanut is wrapped in sweet, buttery goodness.
Step 6: Spread and Cool
Pour the hot mixture onto the prepared baking sheet and spread it out evenly. It’s important to work swiftly here to get an even thickness, which helps the brittle cook and cool uniformly. Let it cool completely for about 30 minutes until it hardens and snaps with a satisfying crunch.
Step 7: Break and Store
Once hardened, break the brittle into pieces of your preferred size. Store them in an airtight container at room temperature for up to two weeks to keep that fresh crunch intact.
How to Serve Peanut Brittle Recipe

Garnishes
While Peanut Brittle Recipe shines on its own, adding a sprinkle of flaky sea salt right after spreading can elevate the sweet and salty balance beautifully. Alternatively, a light dusting of ground cinnamon gives a warm, festive flair perfect for holiday gatherings.
Side Dishes
Peanut brittle pairs wonderfully with simple, complementary treats. Think along the lines of a scoop of vanilla ice cream, a cup of strong black coffee, or even a small cheese plate featuring mild, creamy cheeses that contrast the brittle’s crunch and sweetness.
Creative Ways to Present
If you’re gifting your homemade peanut brittle, consider wrapping pieces in decorative parchment paper tied with twine or placing them in clear jars with festive ribbons. For parties, arrange brittle shards on a wooden board layered with colorful napkins for an inviting, homemade charm that guests will love.
Make Ahead and Storage
Storing Leftovers
Once cooled and broken, keep your peanut brittle in an airtight container at room temperature. Avoid humid environments, as moisture can soften the brittle and reduce that beloved crunch. Stored properly, it stays fresh for up to two weeks.
Freezing
If you want to store peanut brittle for longer, freezing is a smart option. Wrap pieces tightly in plastic wrap, then place them inside a freezer-safe bag or container. When wrapped securely, it can be frozen for up to three months without losing flavor or texture.
Reheating
Peanut brittle doesn’t typically require reheating, but if you’d like to gently refresh its crunch after freezing, let it come to room temperature while still wrapped. Avoid microwaving as it can melt the sugar and ruin the brittle’s texture.
FAQs
What causes peanut brittle to be sticky instead of crunchy?
If the sugar syrup does not reach the hard crack stage (300°F / 150°C), the candy will be too soft and sticky. Using a reliable candy thermometer and waiting until the exact temperature is reached ensures a perfect crunchy texture every time.
Can I substitute peanuts with other nuts?
Absolutely! While peanuts give classic flavor and texture, you can use almonds, cashews, or pecans for a tasty twist. Just be aware that roasting time and flavor profiles will vary slightly depending on the nut.
Why do I need to add baking soda to peanut brittle?
Baking soda creates tiny bubbles in the candy mixture, making the brittle lighter and less dense. This adds a pleasant airiness to the texture that contrasts beautifully with the crunchy peanuts.
How should I store peanut brittle in humid climates?
Humidity can quickly soften peanut brittle. In humid areas, store it in an airtight container with a small silica gel packet to absorb moisture, and keep it in a cool, dry place away from direct sunlight.
Can I make peanut brittle without corn syrup?
Corn syrup helps prevent sugar crystallization and keeps the brittle smooth. You could try substituting it with honey or maple syrup, but results may vary, and the brittle might not be as glossy or crisp.
Final Thoughts
This Peanut Brittle Recipe is a timeless treat that never fails to impress with its crispy texture, sweet buttery flavor, and satisfying crunch. It’s straightforward to make, requires just a handful of ingredients, and fills your kitchen with an irresistible aroma that’s pure comfort. I encourage you to try this recipe soon—you’ll love sharing or savoring each delightful piece of this classic homemade candy!
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Peanut Brittle Recipe
- Total Time: 25 minutes
- Yield: 12 servings 1x
Description
This classic Peanut Brittle recipe delivers a crunchy, sweet treat made from caramelized sugar, corn syrup, and roasted unsalted peanuts. The brittle hardens into delightful shards perfect for snacking or gifting, combining the rich flavor of toasted peanuts with a buttery, vanilla-infused candy base.
Ingredients
Ingredients
- 1½ cups granulated sugar
- ½ cup light corn syrup
- 1 teaspoon vanilla extract
- 1 tablespoon unsalted butter
- ¼ teaspoon baking soda
- 1¼ cups roasted unsalted peanuts
- ¼ teaspoon salt
Instructions
- Prepare Baking Sheet: Line a baking sheet with parchment paper or a silicone baking mat to prevent sticking and set aside for pouring the hot brittle mixture later.
- Combine Sugar Mixture: In a medium saucepan over medium heat, mix the granulated sugar, light corn syrup, and salt. Stir constantly until the sugar fully dissolves, ensuring a smooth syrup base.
- Cook to Hard Crack Stage: Stop stirring and allow the mixture to boil until it reaches 300°F (150°C) on a candy thermometer. This temperature indicates the hard crack stage for perfect brittleness.
- Add Flavor and Leavening: Remove the saucepan from heat. Quickly and carefully stir in the unsalted butter, vanilla extract, and baking soda; the mixture will bubble vigorously as it aerates.
- Incorporate Peanuts: Immediately fold in the roasted unsalted peanuts, mixing thoroughly to coat them evenly with the hot syrup.
- Spread the Brittle: Pour the syrup-peanut mixture onto the prepared baking sheet and spread it into an even layer with a spatula or spoon.
- Cool and Harden: Allow the peanut brittle to cool completely, about 30 minutes, until it is firm and brittle.
- Break and Store: Once hardened, break the brittle into pieces of desired size. Store in an airtight container at room temperature for up to two weeks to maintain freshness.
Notes
- Use a candy thermometer for accuracy to avoid under or overcooking the sugar mixture.
- Be cautious when handling the hot syrup to prevent burns.
- Store in a cool, dry place to prevent the brittle from becoming sticky.
- You can substitute peanuts with other nuts if desired.
- For extra flavor, toast the peanuts lightly before adding.
- Prep Time: 5 minutes
- Cook Time: 20 minutes
- Category: Candy
- Method: Stovetop
- Cuisine: American