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Home > Recipes > Cookies

3 Ingredient Banana Oatmeal Cookies

Published: Dec 17, 2022 · by Demeter | Beaming Baker Leave a Comment · As an Amazon Associate I earn from qualifying purchases.

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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.

3 ingredient banana oatmeal cookies on a cooling rack

Super Easy 3 Ingredient Banana Oatmeal Cookies!

Here at Beaming Baker, you know we absolutely love easy, 3 ingredient recipes. See: whipped shortbread cookies, peanut butter granola bars, and no bake cookies. Today’s recipe is no exception. These 3 ingredient banana oatmeal cookies are unbelievably easy to make, prepared in no time at all, and make for the best snack + treat!

the 3 Ingredients for banana oatmeal cookies laid out on a table

A 3 Ingredient Banana Oatmeal Cookies Recipe!

These soft and moist 3 ingredient banana oatmeal cookies truly make bake time and snack time super easy! For an even easier treat, try my peanut butter granola bars.

  • Bananas – use the ripest bananas for the sweetest cookies.
  • Oats – I love using rolled oats for a chewy, satisfying texture.
  • Add-ins – chocolate chips are my go-to, but you can use seeds, dried fruit, and more.

Hot Tips for The Best Banana Oatmeal Cookies

  • Make the day you want to eat them, or freeze right after cooling: these banana oatmeal cookies are best on day 1, or keep very well in the freezer.
  • Don’t increase the amount of add-ins. I included just the right amount so the cookies don’t fall apart before or after baking.
  • Use truly ripe bananas. For sweet, big banana flavor, use the ripened, spotty bananas.
  • Serve with peanut butter… for a satisfying snack. The combo is delicious.
  • Don’t make the dough in advance. Once the bananas as mashed, they’ll brown very quickly. It’s best to bake this cookie dough immediately.

3 ingredient banana oatmeal cookies on a black and white backdrop

How to Make 3 Ingredient Oat Banana Cookies

These 3 ingredient oat banana cookies come together in no time at all. The result is soft and moist cookies made with simple, guilt-free ingredients.

First, preheat the oven to 350°F. Then grab a nonstick cookie sheet, or line a baking sheet with parchment paper.

Second, mash the banana in a medium mixing bowl.

Third, add in oats and add-ins. Stir and fold until thickened into a banana oatmeal cookie dough.

Using a cookie scoop, scoop and drop balls of dough onto the prepared cookie sheet. Flatten with a fork.

Bake for about 12 minutes. Cool, and enjoy the best 3 ingredient banana oatmeal cookies!

this recipe shown fully baked and cooling on a rack

Storing & Freezing

Funnily enough, storing these 3 ingredient banana oatmeal cookies at room temperature is actually worse than storing them in the freezer.

To Refrigerate: Once cooled, store banana oatmeal cookies in the refrigerator for 1-3 days, maximum. Ripe banana baked goods are best on the first day.

To Freeze (recommended): If you’re not enjoying these delicious 3 ingredient banana oatmeal cookies on the first day, I recommend freezing them. Keep for 1-3 months in the freezer, just like these healthy peanut butter oatmeal cookies.

Angled treats with oats, banana pieces, and add-ins

More Cookie Recipes

  • Whipped Shortbread Cookies
  • Healthy Oatmeal Cookies
  • Chocolate Peppermint Cookies
  • No Bake Peanut Butter Oatmeal Cookies
  • Coconut Cookies
  • Gluten Free Pumpkin Cookies (Vegan)

Tools You Need

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

Bake Me Up Before You Dough Dough…

Don’t leave me hanging here like a yo-yo! Alright, I’ll admit, these 3 ingredient banana oat cookies have got me singing! I hope they do the same for you. 🙂 Thank you for stopping by and sharing in these sweetly baked adventures with me and your loved ones. ‘Til the next one…

Sending you all my love and maybe even a dove, xo Demeter ❤️

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square photo of banana oatmeal cookies on a cooling rack

3 Ingredient Banana Oatmeal Cookies


  • Author: Demeter | Beaming Baker
  • Total Time: 22 minutes
  • Yield: 8 cookies 1x
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Description

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.


Ingredients

Scale

Tools Needed

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

Ingredients

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

Instructions

  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!

Equipment

Pastry Cutter

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Medium Cookie Scoop

Medium Cookie Scoop

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17-Inch Champagne Gold Cookie Sheet

Rose Gold Baking Sheet

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Notes

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

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Made the recipe?

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Related Banana & Oatmeal Recipes

  • Protein Oatmeal
  • Vegan Oatmeal Cookies
  • Caramelized Bananas
  • Super Moist Oatmeal Banana Bread
  • The BEST Gluten Free Oatmeal Chocolate Chip Cookies
  • Banana Oat Muffins
  • Healthy Cookie Recipes
 

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I'm Demeter! Here, you'll find a warm & friendly community for delicious plant-based, whole food recipes. :) I'm so happy to share in these kitchen adventures with you.

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