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Keto Iced Peanut Butter Bars (Low-Carb Dessert Recipe)

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Prep Time 6 minutes
Cook Time 25 minutes
Total Time 31 minutes
Course Dessert
Cuisine American
Servings 12 bars
Calories 275 kcal

Ingredients
  

For the Bars

  • ½ cup unsalted butter
  • ¾ cup smooth peanut butter (no sugar added)
  • 1 cup low-carb brown sweetener (monk fruit or erythritol blend)
  • ½ tsp salt
  • ½ tbsp vanilla extract
  • 2 large eggs
  • 1 cup fine-blanched almond flour

For the Icing

  • ¼ cup smooth peanut butter
  • ½ cup low-carb powdered sweetener
  • 4 tbsp unsweetened almond milk
  • ½ tsp vanilla extract

Instructions
 

  • Preheat & Prep:
    Preheat your oven to 350°F (180°C). Line or grease a 9×9-inch baking pan.
  • Melt Butter & Peanut Butter:
    In a small saucepan, melt butter and ¾ cup peanut butter over medium heat. Stir until smooth, then remove from heat and let cool slightly.
  • Combine Dry Ingredients:
    In a large bowl, mix sweetener, salt, and almond flour until evenly blended and lump-free.
  • Add Wet Ingredients:
    Whisk in vanilla and eggs, then pour in the melted butter-peanut butter mixture. Stir until you have a thick, cohesive batter.
  • Bake the Bars:
    Spread the batter evenly in the prepared pan. Bake for 20–25 minutes, or until the center is set and the edges are golden.
  • Prepare the Icing:
    While the bars bake, melt ¼ cup peanut butter in a small saucepan over low heat. Add almond milk and vanilla extract, stirring until smooth. Remove from heat, whisk in powdered sweetener, and adjust thickness with a splash more almond milk if needed.
  • Ice While Warm:
    Once baked, let the bars cool until warm (not hot). Pour the icing evenly over the top and spread with a spatula. Let it set for a few minutes before slicing into 12 squares.