Go Back

High Protein Peanut Butter Protein Bars - Easy, No-Bake Snack Fuel

Print Recipe Pin Recipe
Prep Time 10 minutes
Total Time 10 minutes
Servings: 12 servings
Ingredients Method

Ingredients
  

  • Natural peanut butter (creamy; just peanuts and salt if possible)
  • Vanilla or chocolate protein powder (whey or plant-based)
  • Rolled oats (old-fashioned; not instant)
  • Honey or maple syrup
  • Milk (dairy or unsweetened non-dairy)
  • Vanilla extract
  • Salt
  • Optional add-ins: mini chocolate chips, chopped peanuts, chia seeds, ground flaxseed, shredded coconut, cinnamon, or a drizzle of melted dark chocolate
  • Optional topping: flaky sea salt
  • Pan and lining: 8x8-inch pan and parchment paper

Method
 

  1. Prep the pan. Line an 8x8-inch pan with parchment, leaving overhang for easy lifting later.
  2. Warm the base. In a medium bowl, stir 1 cup peanut butter with 1/3 cup honey or maple syrup. If it’s too thick, microwave for 15–20 seconds to loosen.
  3. Add flavors. Stir in 1 teaspoon vanilla extract and a pinch (1/4 teaspoon) of salt.
  4. Mix in protein and oats. Add 1 cup protein powder and 1 1/2 cups rolled oats. Stir until crumbly.
  5. Adjust texture. Add milk 1 tablespoon at a time (usually 2–4 tablespoons total) until the mixture holds together when pressed. It should be thick and slightly sticky, not wet.
  6. Add extras. Fold in 2–4 tablespoons of optional add-ins like mini chocolate chips, chopped peanuts, or chia seeds.
  7. Press into pan. Transfer the mixture to the lined pan. Press it down firmly and evenly using a spatula or the back of a measuring cup. Firm packing helps the bars hold shape.
  8. Chill to set. Refrigerate for at least 1 hour, or freeze for 20–30 minutes, until firm.
  9. Slice. Lift the slab out with the parchment. Cut into 10–12 bars or 16 squares, depending on your preferred size.
  10. Optional finish. Drizzle with melted dark chocolate and sprinkle with flaky sea salt. Let set before storing.