Banana Oat Cookies

Sweet, moist, and chewy, these Banana Oat Cookies taste like mini bites of baked oatmeal. Made with just a few ingredients, they’re easy to throw together and a great dessert option if you’re trying to avoid added sugar. 

Plate of banana oat cookies on a blue napkin.

When I’m craving a treat with less sugar and a heartier texture these tasty Banana Oat Cookies are my go-to. 

They come together quickly, freeze well, and are customizable (walnuts and chocolate chips – um, yes please!).

And paired with some Greek yogurt they make a great start to the day or a wholesome afternoon snack.

Banana, oats, cinnamon, and flax labeled on a baking sheet.

Recipe Ingredients

One Banana: For the best flavor, you want the banana to be very ripe with lots of brown speckled spots on the peel. 

Oats: Quick or Old-Fashioned oats will work. If you’ve got a few extra minutes, toast the oats first. It will make your cookies taste 1000 times better.

Cinnamon: for a yummy banana bread vibe. 

Flax Meal (aka ground flaxseed): Totally optional but it helps to bind the cookies together.

How to Make Banana Oat Cookies 

1. Mash the banana until there are no lumps, then stir in the flax meal, cinnamon, and 1/2 cup of oats. Stir in more oats as needed until the mixture comes together. 

Mashed banana and oat cookie dough in a bowl.

2. Scoop the dough onto a lined pan and bake at 350°F for about 15 minutes.

3. Then let the cookies cool completely before gobbling them up.

4. I highly recommend trying one with a quick slather of peanut butter and a sprinkle of sea salt – so good!

Unbaked cookies on a pan and baked cookies on a plate.

Banana Cookie Mixins

Now that you’ve got the basic recipe down, let’s talk flavor customizations. 

  • Chocolate Chip: Stir in 1/4 teaspoon vanilla extract and 1-2 tablespoons mini chocolate chips. 
  • Coconut Blueberry: Add 1/4 cup fresh blueberries and a few tablespoons of unsweetened shredded coconut. 
  • Walnut Raisin: Stir in 1-2 tablespoons of roughly chopped raisins and 1-2 tablespoons of chopped walnuts 
Closeup of blueberry banana oat cookies on a blue plate.

More Tasty Banana Recipes

Plate with a variety of banana oat cookies.

Banana Oat Cookies

Yield: 7 to 8 Cookies
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes

Made with just a few ingredients, these cookies are easy to throw together for a quick snack or dessert. Toss in mini chocolate chips for a sweeter treat! 


  • 1 very ripe banana
  • 1 teaspoon Flax Meal (optional)
  • 1/4 teaspoon Cinnamon
  • 1/2 cup to 3/4 cup Quick Oats or Rolled Oats, toasted if desired


  1. Adjust cooking rack to the middle position and preheat oven to 350°F. If using a toaster oven, select the BAKE setting.
  2. Line a quarter sheet pan with a silicone baking mat or lightly oil.
  3. Add the banana to a medium bowl and mash very well. Stir in the flax meal (if using) and the cinnamon. Then stir in 1/2 cup of oats. If the mixture looks too wet, stir in a few extra tablespoons of oats until everything comes together and is scoopable.
  4. Use a cookie scoop or tablespoon to drop the mixture onto the prepared pan.
  5. Leave mounded or moisten fingertips with water and gently pat into even rounds.
  6. Bake cookies until they are no longer wet-looking and just starting to brown around the edges, about 12 to 15 minutes.
  7. Allow cookies to cool completely on the pan before using a spatula to remove them.


Rack Placement: If your toaster oven only has two placements, use the bottom one.

For Toasted Oats: Spread oats in a single layer on an ungreased rimmed pan. Add to a 350°F oven or toaster oven and cook, stirring occasionally, until the oats are golden and toasted, about 8 to 10 minutes. Cool oats completely before adding to the recipe.

Flax Meal: Omit or substitute an equal amount of chia seeds.

Leftovers: Store them in the fridge in a covered container for 2 to 3 days or freeze for up to 2 months. When frozen they make for a great on-the-go snack as they come to room temperature in about 15 to 20 minutes. 

Nutrition Information:
Yield: 7 Serving Size: 1 cookie
Amount Per Serving: Calories: 43Total Fat: 0.7gSaturated Fat: 0.1gSodium: 0.7mgCarbohydrates: 9.8gFiber: 1.5gSugar: 2.1gProtein: 1.4g

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