Peanut brittle is one of those old-fashioned treats that never really goes out of style. It is sweet, crisp, buttery, and packed with roasted peanut flavor, with that signature snap that makes every bite so satisfying. Whether you make it during the holidays or just because you are craving something crunchy and nostalgic, this candy always feels special.

What makes homemade peanut brittle so good is the balance of textures and flavor. The caramelized sugar turns glossy and golden, the peanuts toast as they cook, and the baking soda gives the candy its delicate, airy crunch. Once you learn the rhythm of making it, this is a recipe you will come back to again and again.

Why Does Peanut Brittle Get Its Signature Crunch?

The magic comes from cooking the sugar mixture to the right stage and then stirring in baking soda at the very end. That final step creates tiny bubbles throughout the hot candy, which helps give peanut brittle its lighter texture instead of a hard, dense bite. The result is a beautifully crisp candy that shatters in the best way.

If you have never made candy before, peanut brittle is a great place to start as long as you stay attentive. Use a heavy saucepan, keep your ingredients measured and ready, and work quickly once the mixture reaches temperature. A little preparation goes a long way here.

Ingredients for the Peanut Brittle

1 cup granulated sugar
1 cup light corn syrup
1/4 teaspoon salt
1 cup water
2 tablespoons unsalted butter
2 cups roasted peanuts
1 teaspoon baking soda
1 teaspoon vanilla extract

How To Make the Peanut Brittle

Step 1: Prepare the pan

Line a baking sheet or large tray with parchment paper or lightly grease it well. Set it near the stove so you can pour the brittle immediately once it is ready.

Step 2: Start the sugar mixture

In a heavy saucepan, combine the sugar, corn syrup, salt, and water. Cook over medium heat, stirring until the sugar dissolves and the mixture looks smooth.

Step 3: Add the peanuts

Stir in the peanuts and continue cooking, stirring often, until the mixture turns a deep golden color and reaches hard crack stage, about 300°F on a candy thermometer.

Step 4: Finish with butter and flavor

Remove the pan from the heat. Quickly stir in the butter, vanilla extract, and baking soda. The mixture will foam up right away, which is exactly what you want.

Step 5: Spread and cool

Immediately pour the hot brittle onto the prepared pan. Use a spatula to gently spread it into an even layer without pressing out too much of the air.

Step 6: Break into pieces

Let the brittle cool completely at room temperature. Once fully set, break it into pieces and store it in an airtight container.

How to Serve and Store Peanut Brittle

Peanut brittle is perfect for gifting, setting out on a dessert tray, or keeping in a jar for a sweet snack during the week. It pairs especially well with coffee, hot chocolate, or a scoop of vanilla ice cream if you want to turn it into an easy dessert plate.

To store it, keep the brittle in an airtight container at room temperature for up to 2 weeks. Make sure it stays in a cool, dry place so it keeps its crisp texture. If your kitchen is humid, place parchment between layers to help prevent sticking.

Frequently Asked Questions

Can I use raw peanuts instead of roasted peanuts?

Yes, but roasted peanuts give the brittle a deeper flavor right away. If you use raw peanuts, they will cook in the syrup, but the final flavor may be slightly less toasty.

Do I need a candy thermometer?

It helps a lot, especially if you are new to candy making. Peanut brittle needs to reach the hard crack stage so it sets properly and snaps instead of staying chewy.

Why do you add baking soda at the end?

Baking soda creates bubbles in the hot candy, which gives peanut brittle its lighter, crisp texture. Without it, the candy would be much denser.

Can I make peanut brittle without corn syrup?

Corn syrup helps prevent crystallization and keeps the texture smooth. Some recipes use alternatives, but classic peanut brittle is usually most reliable with corn syrup.

Why did my brittle turn out sticky?

Sticky brittle is usually caused by undercooking or humidity. Make sure the candy reaches the right temperature and cools fully in a dry space.

Can I add other nuts or toppings?

Yes. Cashews, almonds, or mixed nuts can work well. You can also sprinkle a little flaky salt over the top right after pouring for a sweet-salty finish.

Want More Dessert Ideas?

If peanut brittle always hits the spot, these other sweet favorites from Nina Dishes are worth saving too:

Peppermint Bark Recipe for another crisp candy-style treat that is great for gifting.
Butter Pecan Ice Cream if you love nutty desserts with a rich buttery flavor.
Chocolate Peanut Butter Dream Bars for a chocolatey dessert with that same peanut butter appeal.
Banana Pudding Recipe when you want something creamy, classic, and crowd pleasing.
Bombolini Italian Donuts for a soft and bakery-style sweet treat that feels extra special.

📌 Save this recipe to your Pinterest dessert board so you can find it whenever the craving for something crisp and sweet comes back.

And let me know how your peanut brittle turned out. Did you keep it classic, add a sprinkle of flaky salt, or try a mix of nuts?

I love seeing how these recipes get personalized in real kitchens. For more daily recipe inspiration, visit Nina Dishes on Pinterest.

Peanut Brittle

Author: Nina Klatten
Total Time: 30 minutes
Yield: 12 servings
Diet: Vegetarian

Print Recipe

Description

Peanut brittle is a crisp, buttery candy loaded with roasted peanuts and deep caramel flavor. It comes together with simple pantry ingredients and sets into glossy golden shards with that classic sweet snap everyone loves.