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close up chocolate chip banana oatmeal cookie

3 Ingredient Banana Oatmeal Cookies

  • Author: Melissa Riker
  • Prep Time: 10 min
  • Cook Time: 15 minutes
  • Total Time: 25 minutes
  • Yield: 24 1x
  • Category: dessert
  • Method: baking
  • Cuisine: American


These delicious Banana Oatmeal cookies are a 3 ingredient, low calorie cookie you can make in under 30 minutes.


  • 3 ripe bananas
  • 1.5 cups instant oatmeal
  • 1/2 cup dark chocolate chips


  1. Preheat the oven to 350 degrees and generously spray a cookie sheet with nonstick spray.
  2. In a large bowl mash bananas together with oats until a thick dough is formed.
  3. Add in any additional ingredients you want.
  4. Drop by spoonfuls onto the prepared cookie sheet.
  5. Bake the cookies for 15 minutes.


  • use over ripe fresh bananas, the more brown speckles on your banana, the better!
  • do not use bananas that have been frozen previously
  • these cookies don’t spread so make the spoonfuls the size you want the cookie to be
  • the cooking time is for 24 small tablespoon-ish sized cookies, larger cookies may need a few extra minutes of baking time
  • this is a great recipe to freeze for meal prep-store in a freezer bag up to 3 months

Optional add ins: 4 tablespoons of PB2 for a peanut butter version, 1/2 teaspoon of cinnamon, diced apples, shredded coconut, raisins, sliced almonds, or dried cranberries

Keywords: healthy, banana, oatmeal, cookie