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Banana Oat Peanut Butter Cookies

Healthy banana oatmeal cookies made with mashed bananas and peanut butter.
Quick, healthy cookies made with overripe bananas, rolled oats, and peanut butter, perfect for snacks or breakfast on-the-go.
Prep Time 10 minutes
Cook Time 12 minutes
Total Time 22 minutes
Serving Size 12 cookies

Ingredients

Main Ingredients

  • 2 large overripe bananas (about 1 cup mashed) Riper bananas yield sweeter cookies.
  • 1 cup creamy or chunky peanut butter Natural peanut butter yields softer cookies.
  • 1.5–2 cups rolled oats Old-fashioned oats give the best texture.
  • 1 tsp vanilla extract Optional for added flavor.
  • 0.5 tsp ground cinnamon Optional for added flavor.
  • 0.25 cup mix-ins (dark chocolate chips, chopped nuts, raisins) Optional.
  • pinch salt Only if peanut butter is unsalted.

Instructions

Preparation

  • Preheat the oven to 350°F (175°C) and line a baking sheet with parchment.
  • In a large bowl, mash the bananas thoroughly with a fork until mostly smooth.
  • Stir in the peanut butter and vanilla until combined; the mixture will be thick.
  • Add 1.5 cups of oats first and stir. If the mixture seems too wet, gradually add the remaining oats until it holds shape when pressed.
  • Fold in the cinnamon, salt, or optional mix-ins, keeping chunks small for even baking.

Baking

  • Scoop about 2 tablespoons of dough per cookie onto the lined baking sheet, flattening slightly with the back of the spoon.
  • Bake for 10-12 minutes, until the edges are just set and tops look matte.
  • Remove the cookies to a wire rack after 5 minutes; they will firm as they cool.

Notes

For easier shaping, chill the scooped dough for 10 minutes if it's too sticky. Store in an airtight container for up to 2 days at room temperature, or refrigerate for up to 5 days.