Print

High Protein No Bake Peanut Butter Protein Bars

High Protein No Bake Peanut Butter Protein Bars - recipe card
Print Recipe

These thick, chewy no-bake bars deliver serious protein without turning gritty or dry, thanks to a blend of creamy peanut butter, whey protein, and a touch of honey. They set firm in the fridge, slice cleanly, and taste like a peanut butter cookie dough you can feel good about. Perfect for meal prep, post-workout fuel, or an afternoon snack.

Ingredients

Scale
  • 1 1/2 cups old-fashioned rolled oats (certified gluten-free if needed)
  • 1/2 cup creamy natural peanut butter (unsweetened, no added palm oil)
  • 1/4 cup vanilla or unflavored whey protein isolate powder
  • 1/4 cup honey or pure maple syrup
  • 1/2 teaspoon fine sea salt
  • 1/2 teaspoon vanilla extract
  • 2–4 tablespoons unsweetened almond milk or water (as needed to bring dough together)

Instructions

  1. Line a 9×5-inch loaf pan with parchment paper, leaving an overhang on two sides for easy removal. Lightly grease the parchment with a neutral oil or nonstick spray.
  2. In a large mixing bowl, combine the rolled oats, whey protein isolate powder, and fine sea salt. Whisk until evenly distributed, breaking up any clumps of protein powder.
  3. Add the creamy natural peanut butter, honey (or maple syrup), and vanilla extract to the dry ingredients. Stir with a sturdy spatula or wooden spoon until the mixture resembles coarse, sticky crumbs.
  4. Add unsweetened almond milk 1 tablespoon at a time, stirring after each addition, until the mixture just holds together when squeezed in your palm. Avoid over-moistening, as this will make the bars mushy.
  5. Transfer the mixture to the prepared loaf pan. Use the back of a measuring cup or a flat-bottomed glass to press it firmly and evenly into the pan, paying special attention to the corners. Compact the mixture well; this prevents crumbly bars.
  6. Optional: Sprinkle the top with 1 tablespoon of mini dark chocolate chips or a pinch of flaky sea salt, pressing gently so they adhere.
  7. Refrigerate uncovered for at least 2 hours, or until the bars are firm to the touch and hold their shape when lifted by the parchment overhang.
  8. Lift the slab out of the pan using the parchment overhang and place on a cutting board. Slice crosswise into 4 equal bars with a sharp chef’s knife, wiping the blade between cuts for clean edges.
  9. For best texture and flavor, wrap each bar individually in parchment or wax paper and store in an airtight container in the refrigerator for up to 1 week.
  10. Alternatively, freeze the bars on a parchment-lined sheet until solid, then transfer to a freezer-safe bag or container for up to 3 months. Thaw at room temperature for 10-15 minutes before eating.

Notes

Storage: Keep bars in an airtight container in the refrigerator for up to 7 days. For longer storage, freeze individually wrapped bars for up to 3 months; thaw at room temperature for 10-15 minutes. Reheating not recommended; enjoy cold or at room temperature. Protein boost: For an extra 5g protein per serving, substitute 1/4 cup of the oats with an additional 2 tablespoons of whey protein isolate and add 1 extra tablespoon of almond milk. If using plant-based protein powder, you may need 1-2 extra tablespoons of liquid. Avoid overmixing after adding liquid to prevent a tough texture.

Nutrition

Keywords: high protein no bake bars, peanut butter protein bars, no bake protein bars, healthy snack, meal prep snack, post workout snack, gluten free bars, easy protein bars, whey protein bars, no bake snacks

Find it online: https://thehighproteinrecipes.com/high-protein-no-bake-peanut-butter-protein-bars/