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Banana Oatmeal Protein Cookies

Banana Oatmeal Protein Cookies

iamwinfred
These Banana Oatmeal Protein Cookies are thick, chewy, and packed with wholesome ingredients like rolled oats, vanilla protein powder, and natural peanut butter. Made with just one bowl and no eggs, butter, or refined sugar, they come together in under 25 minutes and work perfectly as a grab-and-go breakfast or a satisfying high-protein afternoon snack. Naturally sweetened with ripe bananas and honey, they are easy to customize with chocolate chips, raisins, or nuts.
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Prep Time 10 minutes
Cook Time 12 minutes
Total Time 22 minutes
Course Snack
Cuisine American
Servings 12 cookies
Calories 110 kcal

Equipment

  • Large mixing bowl
  • Fork For mashing bananas
  • Rubber spatula or wooden spoon
  • Baking sheet
  • Parchment paper Or silicone baking mat
  • Cookie scoop Medium size; a heaping tablespoon works too
  • Wire cooling rack

Ingredients
  

  • 2 ripe bananas The riper and more spotted, the sweeter the cookies
  • 1½ cups rolled oats About 135g; use certified gluten-free oats if needed; do not substitute steel-cut oats
  • 1 scoop vanilla protein powder About 30g; whey-based or plant-based both work
  • 2 tbsp peanut butter Natural peanut butter preferred; almond butter can be substituted
  • 2 tbsp honey Maple syrup can be substituted for a vegan version
  • ½ tsp cinnamon
  • ¼ tsp vanilla extract
  • salt Just a pinch

Optional Add-Ins

  • ¼ cup mini chocolate chips Or raisins, dried cranberries, chopped nuts, or shredded coconut

Instructions
 

  • Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat and set aside.
  • Peel both ripe bananas and place them in a large mixing bowl. Use a fork to mash them thoroughly until you have a mostly smooth paste with minimal lumps.
  • Add the peanut butter, honey, and vanilla extract to the mashed banana. Stir well until everything is fully combined and the peanut butter is evenly distributed.
  • Add the rolled oats, vanilla protein powder, cinnamon, and a pinch of salt to the bowl. Stir until a thick, sticky dough forms with no dry pockets remaining. Fold in any optional add-ins at this stage.
  • Use a medium cookie scoop or heaping tablespoon to portion the dough onto the prepared baking sheet, spacing cookies about 1.5 to 2 inches apart. Gently press each mound down into a flat round disc about ½ inch thick, as these cookies will not spread on their own during baking.
  • Bake on the center rack for 11 to 13 minutes, until the edges are set and lightly golden. The tops may still look slightly soft — this is normal and they will firm up as they cool.
  • Let the cookies rest on the pan for 5 minutes before transferring to a wire cooling rack. Allow to cool completely before storing, as they firm up to a perfectly chewy texture once cooled.

Notes

  • Use very ripe bananas with brown spots on the peel for the sweetest, most flavorful cookies. Underripe bananas produce a bland, starchy result.
  • Always flatten the cookies before baking. This dough does not spread in the oven, so the shape you give them going in is the shape they come out.
  • If your dough feels too wet (common with plant-based protein powders), stir in an extra tablespoon of oats. If it feels too dry, add a teaspoon of milk or water.
  • Do not overbake. Pull the cookies when the edges look just set — they will continue to firm up on the pan as they cool.
  • For a vegan version, swap the honey for pure maple syrup and use a plant-based protein powder.
  • For a nut-free version, replace the peanut butter with sunflower seed butter (sunbutter).
  • Store at room temperature in an airtight container for up to 3 days, in the refrigerator for up to 7 days, or freeze for up to 3 months.
  • To freeze, lay cooled cookies in a single layer on a baking sheet, freeze until solid (1 to 2 hours), then transfer to a freezer bag. Thaw at room temperature for 20 minutes or microwave for 20 to 30 seconds.
  • Keep total mix-ins (chocolate chips, raisins, nuts, etc.) to about ¼ cup so the dough holds together properly.
  • Measure oats by spooning into the measuring cup and leveling off — do not pack them. Too many oats results in dry, crumbly cookies.

Nutrition

Serving: 1cookieCalories: 110kcalCarbohydrates: 14gProtein: 7gFat: 3.5gSaturated Fat: 0.5gPolyunsaturated Fat: 0.8gMonounsaturated Fat: 1.5gCholesterol: 5mgSodium: 40mgPotassium: 145mgFiber: 2gSugar: 5gVitamin A: 1IUVitamin C: 3mgCalcium: 3mgIron: 4mg
Keyword banana oatmeal protein cookies, banana protein snack, healthy oatmeal cookies, high protein cookies, no sugar cookies
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