ChickenKeto Recipes

Keto Peanut Brittle Recipe: A Crunchy Low-Carb Delight

Indulging in the sweet crunch of peanut brittle is a timeless pleasure, and with a keto twist, you can savor this classic treat without compromising your low-carb lifestyle. In this detailed guide, we’ll explore the art of creating a Keto Peanut Brittle that’s not only deliciously crunchy but also fits seamlessly into your ketogenic diet. Get ready to embark on a journey of sweet satisfaction while staying true to your commitment to health and wellness.

Understanding the Keto Peanut Brittle Challenge:

Traditional peanut brittle relies heavily on sugar, a high-carb ingredient that doesn’t align with keto principles. Creating a keto-friendly version involves finding suitable substitutes for sugar while maintaining the signature crunch and sweetness that define this beloved treat.

Keto Peanut Brittle Recipe


  • 1 cup roasted unsalted peanuts
  • 1/2 cup unsalted butter
  • 1/2 cup powdered erythritol (or your preferred keto-friendly sweetener)
  • 1/4 cup water
  • 1/2 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 1/2 teaspoon baking soda


Preparing the Keto Peanut Brittle:

  1. Prepare the Pan:
    • Line a baking sheet with parchment paper and set it aside. Make sure the parchment paper extends over the edges for easy removal later.
  2. Roast the Peanuts:
    • If your peanuts aren’t already roasted, dry roast them in a pan over medium heat until they become golden and fragrant. Set aside.
  3. Create the Sweetener Mixture:
    • In a saucepan over medium heat, combine the butter, powdered erythritol, and water. Stir continuously until the sweetener dissolves and the mixture comes to a gentle boil.
  4. Cook to the Soft-Ball Stage:
    • Attach a candy thermometer to the side of the saucepan and let the mixture cook until it reaches the soft-ball stage, around 250°F (120°C). This may take 10-15 minutes.
  5. Stir in Vanilla Extract and Salt:
    • Once the sweetener mixture reaches the soft-ball stage, remove the saucepan from the heat. Stir in the vanilla extract and salt.
  6. Add Baking Soda:
    • Quickly add the baking soda to the mixture and stir well. The mixture will start to foam, so be ready for this reaction.
  7. Fold in the Peanuts:
    • Carefully fold in the roasted peanuts, ensuring they are evenly coated with the sweet and foamy mixture.
  8. Spread onto the Baking Sheet:
    • Immediately pour the peanut mixture onto the prepared baking sheet, spreading it out evenly with a spatula.
  9. Allow to Cool:
    • Let the keto peanut brittle cool at room temperature until it hardens completely. This may take about 1-2 hours.
  10. Break into Pieces:
    • Once the peanut brittle is fully cooled and hardened, break it into bite-sized pieces.
  11. Store in an Airtight Container:
    • Store the Keto Peanut Brittle in an airtight container at room temperature. Enjoy as a crunchy snack or share it with friends and family.

Tips for Perfecting Your Keto Peanut Brittle:

1. Choose Quality Sweeteners:

  • Experiment with different keto-friendly sweeteners to find the one that suits your taste buds. Erythritol, monk fruit, or a blend of sweeteners can work well.

2. Monitor the Soft-Ball Stage:

  • Achieving the soft-ball stage is crucial for the texture of the peanut brittle. Use a reliable candy thermometer and keep a close eye on the temperature to prevent overcooking.

3. Work Quickly:

  • Once you add the baking soda, the mixture will start to foam and set. Move swiftly to fold in the peanuts and spread the mixture onto the baking sheet before it hardens.

4. Customize with Nuts:

  • While peanuts are a classic choice, feel free to experiment with other nuts like almonds, pecans, or walnuts for a unique twist.

5. Enhance Flavor with Extracts:

  • Consider adding different extracts, such as almond or maple, to enhance the flavor profile of your keto peanut brittle.

6. Adjust Salt to Taste:

  • The salt in the recipe balances the sweetness. Adjust the amount to your liking, keeping in mind that different brands of butter may have varying salt levels.

7. Be Patient during Cooling:

  • Allow the peanut brittle to cool completely at room temperature. Rushing this process may result in a less desirable texture.

8. Store Properly:

  • Store the keto peanut brittle in an airtight container at room temperature. Placing parchment paper between layers can prevent pieces from sticking together.


This Keto Peanut Brittle recipe allows you to indulge in the delightful crunch and sweetness of a classic treat while adhering to your ketogenic lifestyle. The combination of roasted peanuts, keto-friendly sweeteners, and a touch of vanilla creates a satisfying snack that’s perfect for sharing or enjoying on your own. As you break into each piece of this low-carb delight, savor the accomplishment of creating a keto peanut brittle that stands up to its traditional counterpart. Enjoy the sweet moments of this crunchy creation while staying true to your commitment to a healthy and flavorful keto lifestyle.

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