Why is my Old Fashioned Peanut Brittle chewy instead of crunchy?

Chewy peanut brittle usually means the sugar mixture did not reach the proper temperature. For a crisp texture, Old Fashioned Peanut Brittle should reach approximately 300°F, which is known as the hard-crack stage. Removing the mixture from the heat too early can leave excess moisture in the candy, resulting in a softer or stickier texture. Humidity can also affect brittle after it has cooled. Store the candy in a tightly sealed airtight container at room temperature to help preserve its crunch.

Can I make Old Fashioned Peanut Brittle without a candy thermometer?

It is possible, but a candy thermometer is strongly recommended. Traditional candy makers sometimes test the syrup by dropping a small amount into cold water. At the hard-crack stage, the syrup forms hard, brittle strands that snap when bent. However, this method is less precise than using a thermometer. Because the difference between properly cooked and burned sugar can happen quickly, a reliable candy thermometer makes Old Fashioned Peanut Brittle much easier and more consistent.

What kind of peanuts are best for Old Fashioned Peanut Brittle?

Spanish peanuts are an excellent choice because their smaller size allows them to spread evenly throughout the candy. Roasted salted peanuts also work very well and add a pleasant sweet-and-salty contrast. If you use unsalted peanuts, consider adding a small amount of salt to the sugar mixture. Raw peanuts can also be used in some versions of Old Fashioned Peanut Brittle, but roasted peanuts provide a deeper nutty flavor and require less guesswork during preparation.

Easy Old Fashioned Peanut Brittle Recipe

Name: Old Fashioned Peanut Brittle
Prep time: 10 min
Cook time: 28 min
Total time: 38 min
Cuisine: American
Ingredients: 2 cups granulated sugar; 1 cup water; 1 cup light corn syrup; 2 cups peanuts; 1/2 teaspoon salt, only if using unsalted peanuts; 2 tablespoons butter; 1 teaspoon vanilla extract; 1 teaspoon baking soda

Description

Old Fashioned Peanut Brittle is a classic homemade candy made with roasted peanuts in a crisp, buttery caramelized sugar coating. Cooked to the hard-crack stage, it cools into crunchy golden pieces that are perfect for holiday treats, dessert trays, and homemade gifts.

Ingredients

Scale

2 cups granulated sugar
1 cup water
1 cup light corn syrup
2 cups peanuts
1/2 teaspoon salt, only if using unsalted peanuts
2 tablespoons butter
1 teaspoon vanilla extract
1 teaspoon baking soda

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Instructions

Line a large baking sheet with parchment paper or a silicone baking mat.
Add the granulated sugar, water, and light corn syrup to a large saucepan. Place over medium heat.
Cook, stirring occasionally, until the sugar mixture reaches 245°F on a candy thermometer.
Add the peanuts, salt if using unsalted peanuts, and butter. Continue cooking and stirring occasionally until the mixture reaches 300°F, the hard-crack stage.
Remove the saucepan from the heat and immediately stir in the vanilla extract and baking soda. The mixture will foam slightly.
Immediately pour the hot peanut brittle mixture onto the prepared baking sheet. Carefully spread it into an even layer using a heat-safe spoon, butter knife, or offset spatula.
Allow the brittle to cool completely for about 1 hour.
Break the cooled Old Fashioned Peanut Brittle into pieces and serve or store in an airtight container.

Notes

A candy thermometer is highly recommended because the mixture must reach 300°F for a crisp brittle texture.
Do not allow the thermometer to touch the bottom of the saucepan, as this can give an inaccurate temperature reading.
Roasted salted Spanish peanuts work especially well. If using salted peanuts, omit the additional salt.
Watch the mixture closely as it approaches 300°F because the temperature can rise quickly.
Prepare the baking sheet and measure all ingredients before starting because the brittle sets quickly after cooking.
Store peanut brittle in an airtight container at room temperature for up to 2 weeks.
Avoid refrigerating peanut brittle because moisture can soften its crisp texture.
For easy cleanup, add water to the cooled saucepan and bring it to a boil to dissolve hardened sugar residue.

Prep Time: 10 minutes
Cook Time: 28 minutes
Category: Dessert
Method: Stovetop Candy Making
Cuisine: American

Nutrition

Serving Size: 1 serving
Calories: 277 kcal
Sugar: 42 g
Sodium: 157 mg
Fat: 11 g
Saturated Fat: 2 g
Unsaturated Fat: 7 g
Trans Fat: 0.1 g
Carbohydrates: 45 g
Fiber: 2 g
Protein: 4 g
Cholesterol: 4 mg