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Peanut Butter Protein Muffins - Easy, Satisfying, and Perfect for On-the-Go

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Prep Time 10 minutes
Cook Time 18 minutes
Total Time 28 minutes
Servings: 12 servings
Ingredients Method

Ingredients
  

  • Peanut butter (creamy, unsweetened): The star ingredient for flavor, healthy fats, and structure.
  • Protein powder (whey or plant-based, vanilla or unflavored): Choose a brand you like; it affects sweetness and texture.
  • Rolled oats or oat flour: Adds fiber and a tender crumb. You can blitz rolled oats in a blender to make oat flour.
  • All-purpose flour or whole wheat pastry flour: Helps the muffins rise and hold together.
  • Eggs: For binding and lift.
  • Milk (dairy or non-dairy): Thins the batter to the right consistency.
  • Honey or maple syrup: Natural sweetness with moisture.
  • Greek yogurt or mashed banana: Keeps the muffins soft and adds protein or natural sweetness.
  • Baking powder and baking soda: Essential for rise.
  • Vanilla extract: Rounds out the flavor.
  • Salt and cinnamon (optional): Enhances taste and warmth.
  • Mix-ins (optional): Mini chocolate chips, chopped peanuts, or blueberries.

Method
 

  1. Prep your pan and oven: Heat the oven to 350°F (175°C). Line a 12-cup muffin tin with liners or lightly grease it.
  2. Combine the wet ingredients: In a large bowl, whisk 3/4 cup creamy peanut butter, 2 large eggs, 1/2 cup Greek yogurt (or 1/2 cup mashed ripe banana), 1/3 cup honey or maple syrup, 1 cup milk, and 1 teaspoon vanilla until smooth.
  3. Mix the dry ingredients separately: In another bowl, stir together 1 cup oat flour (or finely ground rolled oats), 3/4 cup all-purpose or whole wheat pastry flour, 1/2 cup protein powder, 1 1/2 teaspoons baking powder, 1/2 teaspoon baking soda, 1/2 teaspoon cinnamon, and 1/4 teaspoon salt.
  4. Bring it together: Add the dry ingredients to the wet and stir gently until just combined. The batter should be thick but scoopable. If it’s too thick, add a splash more milk.
  5. Add mix-ins: Fold in up to 1/2 cup mini chocolate chips, chopped peanuts, or berries. Don’t overmix.
  6. Fill the muffin cups: Divide the batter evenly among the 12 cups, filling each about 3/4 full.
  7. Bake: Bake for 16–20 minutes, or until the tops are set and a toothpick comes out with just a few moist crumbs.
  8. Cool: Let the muffins rest in the pan for 5 minutes, then transfer to a rack to cool completely. This helps them set and stay moist.