These 3-Ingredient Oat Cookies are my go-to when I want something easy, wholesome, and just sweet enough.

Made with ripe bananas, rolled oats, and creamy peanut butter, they come together in minutes and bake into soft, chewy bites with no added sugar. I like to brush a little melted chocolate on top for a touch of indulgence—it’s optional, but highly recommended!

This recipe is perfect when you’re low on time but still want to make something homemade and satisfying. It’s also a fun one to make with kids or when you just want to clear out a few pantry staples. Simple, quick, and delicious—just how I like it.

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Equipment You Will Need

Measuring cups and spoons
Fork
Spoon
Mixing bowl
Parchment paper
Baking sheet
Serving dish

Pyrex Essentials (3-Piece) Glass Mixing Bowls Set For Prepping, Baking and Cooking, Preheated Oven, Dishwasher, Freezer, and Microwave Safe

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200 Pcs Parchment Paper Sheets, 12 x 16 Inch, Precut Non-Stick Parchment Sheets for Baking, Cooking, Grilling, Air Fryer and Steaming - Unbleached, Fit for Half Sheet Pans

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Nordic Ware Naturals Half Sheet - USA Made Aluminum Commercial Quality Sheet Pan for Baking or Roasting, Encapsulated Galvanized Steel Rim Prevents Warping, 2-Pack

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3 Ingredient Oat Cookies

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Print Recipe

These 3 Ingredient Oat Cookies are a quick, wholesome treat made with just oats, ripe bananas, and peanut butter with a bonus brushed melted chocolate on top. Naturally sweet and chewy, they’re perfect for a healthy snack or fuss-free dessert.

Total Time: 15-20 minutes
Yield: 6 cookies

Ingredients

Scale

2 cups oatmeal

3 tablespoons peanut butter

2 bananas

3 tablespoons chocolate chips (optional)

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Instructions

Mash bananas until smooth.
Add peanut butter. Stir.
Add oatmeal. Stir.
Place on baking sheet and bake at 350F for 10-15 minutes.
Melt chocolate and brush each cookie with melted chocolate.

Author: Little Party Pixie
Prep Time: 5 minutes
Cook Time: 10-15 minutes
Category: Sweet Treats

Step-By-Step Process

Ingredients and process image for making Banana and Oat Cookies — *Mash bananas until smooth,* then add in peanut butter and oatmeal. Mix well. Scoop and shape on a baking sheet and bake.
Then, melt the chocolate and brush on top of each cookie. Serve and enjoy!

These cookies are perfect for after-school snacks, light desserts, or bringing along to casual get-togethers. They’re easy to pack, easy to love, and easy to make again and again.

If you like quick, feel-good recipes that don’t require a lot of prep, you’ll find more just like this on the blog. There’s plenty of fun and fuss-free inspiration waiting for you.

If you liked this simple cookie idea, you’ll also enjoy the Easy Brownie Cookies or the Smore Cookies—both are quick, tasty, and sweet.

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