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3 Ingredient Banana Oatmeal Cookies Recipe

Published: Aug 11, 2026 by Amelia · This post may contain affiliate links · Leave a Comment

Jump to Recipe· 4.4 from 12 reviews

Looking for a quick, wholesome treat that feels indulgent but is made from just a handful of ingredients? This 3 Ingredient Banana Oatmeal Cookies Recipe is exactly what you need. These cookies combine the natural sweetness of ripe bananas, the hearty chew of oats, and the delightful richness of chocolate chips into a simple, satisfying snack perfect for any time of day. Whether you're craving something healthy or need a fuss-free dessert, these cookies bring comfort in every bite with minimal effort and maximum flavor.

Ingredients You'll Need

A clear glass bowl sits on a white marbled surface, containing a small portion of mashed banana that is light yellow with a slightly chunky texture. Inside the bowl, a silver fork rests on top of the mashed bananas, positioned horizontally across the mixture. The image is clear and simple, focusing on the single-layer of mashed banana in the bowl. photo taken with an iphone --ar 4:5 --v 7

Getting these cookies just right is all about the simplicity and quality of your ingredients. Each one plays a crucial role in creating the perfect balance of taste and texture, from moistness to chewiness to that melty chocolate surprise.

  • 2 large ripe bananas: Naturally sweet and creamy, bananas bind everything together and add moisture to your cookies.
  • 1.5 cups old fashioned oatmeal: Offers a hearty, chewy texture while keeping these cookies wholesome and filling.
  • ¼ cup semi-sweet chocolate chips: Adds a touch of indulgent sweetness that contrasts beautifully with the bananas and oats.

How to Make 3 Ingredient Banana Oatmeal Cookies Recipe

Step 1: Preheat and Prepare

Start by setting your oven to 350 degrees Fahrenheit and greasing a cookie sheet. This ensures your cookies won’t stick and helps them bake evenly, giving you that perfect golden-brown bottom every time.

Step 2: Mash the Bananas

Peel those ripe bananas and pop them into a mixing bowl. Use a fork to mash until mostly smooth, leaving a few small lumps—they add lovely texture. This step is key to infusing your cookies with natural sweetness and moisture without any added sugar.

Step 3: Mix in Oatmeal and Chocolate Chips

Stir in the oatmeal and chocolate chips until everything is well combined. You’ll notice the mixture thickens as the oats start to absorb some of the banana’s moisture, creating a dough that’s easy to scoop but still holds together beautifully.

Step 4: Scoop and Shape

Using a rounded tablespoon or a cookie dough scoop makes this job effortless. Drop dollops of the batter onto your prepared cookie sheet, spacing them out slightly since they don’t spread much.

Step 5: Bake and Cool

Bake for 9 to 10 minutes until the cookies are set and the edges look lightly golden. Once out of the oven, transfer the cookies immediately to a cooling rack to avoid sogginess and preserve that perfect chewy texture.

How to Serve 3 Ingredient Banana Oatmeal Cookies Recipe

The image shows nine small clusters of oatmeal cookies with dark chocolate chips scattered on a white marbled surface lined with crinkled parchment paper. The cookies are chunky and rough in texture, with light brown oats forming the base and deep brown chocolate chips embedded throughout. In the background, there is a glass jar filled with more oats and a loose pile of chocolate chips, both placed on the same white marbled surface. A woman's hand with a spoon is partially visible on the right side, near the cookies. The overall scene is well-lit with soft natural light, creating a cozy and homemade feel. photo taken with an iphone --ar 4:5 --v 7

Garnishes

While these cookies are delightful all on their own, a sprinkle of sea salt or a dusting of cinnamon on top right out of the oven can elevate their flavor. For an extra touch, drizzle a little melted nut butter for a nutty contrast that pairs beautifully with banana.

Side Dishes

Pair these cookies with a cup of your favorite tea or a smoothie for a wholesome snack. They also make a great midday pick-me-up alongside yogurt or fresh fruit to round out your treat with some added freshness and creaminess.

Creative Ways to Present

For a fun twist, sandwich two cookies together with a layer of peanut butter or cream cheese frosting. Or crumble them over a bowl of vanilla ice cream or oatmeal for a bit of crunch and banana-oat inspiration throughout your meal.

Make Ahead and Storage

Storing Leftovers

Keep any leftover cookies in an airtight container at room temperature for up to three days. This keeps them soft and chewy, perfect for grabbing as a quick snack whenever cravings hit.

Freezing

If you want to keep these treats longer, they freeze beautifully. Store them in a freezer-safe container or bag, separated by parchment paper to prevent sticking, and enjoy them within two months. Just thaw at room temperature before indulging.

Reheating

Warm these cookies up in the microwave for about 15 seconds or in a toaster oven for a few minutes to revive that fresh-baked softness and melting chocolate experience. It’s like having freshly baked cookies all over again!

FAQs

Can I use quick oats instead of old fashioned oatmeal?

Yes, quick oats will work in a pinch, but old fashioned oats provide a better chewy texture that holds the cookies together without becoming mushy.

Are these cookies gluten-free?

They can be! Just make sure you use certified gluten-free oats, as regular oats sometimes have cross-contamination with gluten-containing grains.

Can I add nuts or other mix-ins?

Absolutely! Chopped walnuts, pecans, or dried fruit can be stirred into the batter to add crunch and variety, just keep the total ingredient count simple to maintain the ease of the recipe.

What if my bananas aren’t ripe enough?

For best results, use bananas that are very ripe with brown spots. If your bananas are underripe, the cookies may lack sweetness and moisture, making them less soft.

Can I make the batter ahead of time?

The batter is best used immediately to keep the texture spot-on, but it can be refrigerated for up to 4 hours if needed. Just give it a quick stir before scooping onto the cookie sheet.

Final Thoughts

There’s nothing quite like the comfort and simplicity of this 3 Ingredient Banana Oatmeal Cookies Recipe. It’s perfect for busy days, last-minute cravings, or whenever you want a healthy treat that feels like a little indulgence. Give it a try—you might just find your new favorite go-to snack that’s as nourishing as it is delicious.

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3 Ingredient Banana Oatmeal Cookies Recipe

3 Ingredient Banana Oatmeal Cookies Recipe

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4.4 from 12 reviews

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These 3 Ingredient Banana Oatmeal Cookies are a quick, healthy, and delicious treat made with just ripe bananas, oats, and semi-sweet chocolate chips. They are naturally sweetened, gluten-free when using gluten-free oats, and perfect for a quick snack or dessert.

  • Total Time: 15 minutes
  • Yield: 18 cookies

Ingredients

Ingredients

  • 2 large ripe bananas (if bananas are small or medium, use 2.5 bananas)
  • 1.5 cups old fashioned oatmeal (gluten free if needed)
  • ¼ cup semi-sweet chocolate chips

Instructions

  1. Preheat and Prepare: Preheat your oven to 350°F (175°C). Lightly grease a cookie sheet or line it with parchment paper to prevent sticking.
  2. Mash Bananas: Peel the ripe bananas and place them in a medium mixing bowl. Use a fork to mash the bananas until the mixture is mostly smooth with a few small lumps remaining. This will take a couple of minutes.
  3. Mix Ingredients: Add the old fashioned oatmeal and semi-sweet chocolate chips to the mashed banana mixture. Stir everything until well combined.
  4. Form Cookies: Drop the cookie dough by rounded tablespoons or use a cookie scoop onto the prepared cookie sheet, spacing them evenly.
  5. Bake: Bake the cookies in the preheated oven for 9-10 minutes. They should be lightly golden and set.
  6. Cool and Serve: Immediately remove the cookies from the pan to a cooling rack to prevent sogginess. Allow them to cool slightly before enjoying.

Notes

  • Use very ripe bananas for best natural sweetness and texture.
  • Oats should be old fashioned, not quick oats, for better structure.
  • The cookies are best eaten the day they are baked but can be stored in an airtight container for up to 3 days.
  • For a dairy-free version, use dairy-free chocolate chips.
  • You can add chopped nuts or dried fruit to customize the cookies.
  • Author: Amelia
  • Prep Time: 5 minutes
  • Cook Time: 10 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Gluten Free

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Hi, I’m so happy you’re here!

I'm Amelia, a 27-year-old recipe developer and former restaurant line cook living in Portland, Oregon. This is where I share recipes that actually work in real kitchens, tested by someone who's cooked through the chaos of Friday night dinner rush and the reality of weeknight exhaustion.

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