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square photo of banana oatmeal cookies on a cooling rack

3 Ingredient Banana Oatmeal Cookies


Soft ‘n moist banana oatmeal cookies made with just 3 ingredients, these cookies are healthy, easy to make, and packed with your favorite add-ins! The best 3 ingredient banana oatmeal cookies.




Tools Needed

  • Medium cookie scoop
  • Mixing bowls
  • Baking sheet
  • Banana masher
  • Measuring spoons
  • Measuring cups


  • ½ cup mashed, ripened banana (about 1 medium banana)
  • ¾ cup rolled oats
  • 3 tablespoons add-ins of choice (chocolate chips, seeds, etc.)



  1. Preheat oven to 350°F. Line a baking sheet with lightly greased foil or parchment paper.
  2. In a medium bowl, add peeled banana. Using a pastry cutter or fork, mash bananas until almost smooth.
  3. Add rolled oats and your favorite add-ins. Stir and fold until well incorporated and thickened.
  4. Using a medium cookie scoop, scoop and drop balls of cookie dough onto the prepared baking sheet.
  5. Using a fork, flatten cookies to desired thickness.
  6. Bake for 10-14 minutes. Mine took 12 minutes.
  7. Place baking sheet on a cooling rack. Allow cookies to set for about 5 minutes on the sheet. Then, transfer to rack to cool completely. Enjoy!



Cool completely before storing.

Storing Instructions: Store in an airtight container in the refrigerator for 1-3 days. Cookies are best on the first day.

Freezing Instructions: Store cookies in a freezer-friendly container for 1-3 months. Allow to thaw or heat until warm before serving.

How to make Vegan: Keep as is. Make sure to use vegan add-ins.

How to make Gluten Free: Use certified gluten free rolled oats.

  • Prep Time: 10 minutes
  • Cook Time: 12 minutes
  • Category: Dessert, Snacks
  • Method: Bake