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Peanut Butter Banana Oatmeal Cookies

Name: Peanut Butter Banana Oatmeal Cookies
Prep time: 5 min
Cook time: 15 min
Total time: 20 min
Cuisine: American
Ingredients: 2 cups rolled oats; 1 cup mashed banana (~3 bananas); 1/3 cup peanut butter; 1/3 cup chocolate chips, optional; 1 tsp pure vanilla extract, optional; 1/2 tsp cinnamon, optional; 1/2 tsp salt, optional

Published: Mar 22, 2021 · Modified: Oct 22, 2021 by Kaylie Grace · 40 Comments

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Peanut butter banana oatmeal cookies are an easy, quick, and healthy dessert! This one-bowl cookie recipe requires just 3 ingredients: rolled oats, overripe bananas, and peanut butter. They are flourless, vegan, gluten-free, oil-free, refined sugar-free, and naturally sweetened. Nutritious enough for breakfast but delicious enough to satisfy a sweet tooth!

five peanut butter banana oatmeal cookies on a wire cooling rack surrounded by bowls of ingredients

Flourless chocolate chip banana oatmeal cookies

If you love sweets but you also prioritize a healthy plant-based diet, I have the PERFECT dessert for you! These peanut butter banana oatmeal cookies are packed with fiber, vitamins, minerals, and contain no added sugar. I’m willing to bet these are the healthiest cookies you’ll ever eat.

What’s so great about these cookies? The wholesome recipe finally lets you consume cookies for breakfast! That’s right – cookies for breakfast. (Yum!) The nutritious ingredients provide long-lasting energy to power your day. Grab a cookie for an on-the-go breakfast, as a midday pick-me-up, or devour one to satisfy your post-dinner sweet tooth.

Only 3 ingredients are required for this easy cookie recipe: rolled oats, overripe bananas, and peanut butter. You can add your favorite mix-ins, like chocolate chips, nuts, and dried fruit. I recommend including a dash of cinnamon, vanilla extract, and a pinch of salt as flavor enhancers. All of these add-ins are entirely optional – the cookies are perfectly delicious with just the 3 required ingredients.

These peanut butter banana oatmeal cookies are:

Vegan, gluten-free, dairy-free, soy-free, and oil-free
Quick & easy to make // ready in 20 minutes or less
Naturally sweetened with bananas // refined sugar-free
A simple one-bowl cookie recipe
Fiber-packed with wholesome ingredients
A healthy snack, breakfast cookie, or nourishing dessert
Great for meal prep, school lunches, and work lunches
Kid-approved!

a stack of peanut butter banana oatmeal cookies with chocolate chips on a small white plate

Ingredients in these healthy breakfast cookies

Oats: This recipe contains rolled oats instead of flour. Oats contain various nutrients, including magnesium, vitamin B1, and iron. They are also packed with fiber and provide a good amount of plant-based protein.
Banana: Overripe bananas act as a natural sweetener. For the sweetest flavor, be sure to use bananas that have yellow peels with brown specks all over them.
Peanut butter: Peanut butter helps bind the oats and bananas together while providing healthy fats. You can substitute the peanut butter with any other type of nut butter. Try almond butter, cashew butter, or sunflower seed butter for a nut-free option.
Chocolate chips: Although they are optional, I highly recommend adding chocolate chips to these banana oatmeal cookies.
Vanilla extract: A dash of vanilla extract is also optional.
Cinnamon: Add a pinch of cinnamon for warm flavor and anti-inflammatory properties.
Salt: Salt helps balance the other flavors.

a wood and marble cutting board topped with bowls of ingredients, including sliced banana, peanut butter, chocolate chips, rolled oats, cinnamon, and vanilla extract

How to make 3 ingredient banana oatmeal cookies

For the full ingredients list and step-by-step instructions, scroll down to view the recipe card below.

Combine mashed bananas and peanut butter

In a large bowl, combine the mashed banana, peanut butter, vanilla extract, cinnamon, and salt. Mix the ingredients together until well combined.

mashed banana, peanut butter, vanilla extract, and salt in a glass bowl

a wooden spoon mixing peanut butter and mashed banana in a glass bowl

Add rolled oats and chocolate chips

Next, toss in the rolled oats. Stir ingredients until the oats are evenly incorporated. Then, fold in the chocolate chips (or your choice of mix-ins).

a wooden spoon mixing peanut butter banana oatmeal cookie dough in a glass bowl

peanut butter banana oatmeal cookie dough with chocolate chips in a bowl

Scoop the cookie dough into 8 rounds. Transfer to a parchment paper-lined baking sheet.

chocolate chip peanut butter banana oatmeal cookie dough in a glass bowl with a wood spoon

a cookie scoop scooping peanut butter banana oatmeal cookie dough in a glass bowl

Bake the cookies

Using clean hands or a spoon, flatten the balls of dough and shape them into cookies. They do not spread in the oven, so form them before baking.

Bake the cookies at 350 degrees F for 15 minutes. After, remove them from the oven and cool for a few minutes. Enjoy with a glass of almond milk!

five balls of peanut butter banana oatmeal cookie dough on a baking sheet

a hand pressing balls of chocolate chip banana oatmeal cookie dough on a baking sheet

a pile of chocolate chip peanut butter banana oatmeal cookies on a wire cooling rack

Mix-ins and add-ins

We all love chocolate chips, but you may be wondering… what can you put in cookies instead of chocolate? There are several options to choose from.

Nuts: add crushed nuts, such as walnuts, pecans, peanuts, or cashews
Dried fruit: replace the chocolate chips with raisins, cranberries, dried blueberries, or goji berries
Coconut: sprinkle shredded coconut or coconut flakes into the cookie dough
Cacao nibs: cacao nibs are a healthy alternative to chocolate chips
Seeds: toss in a handful of pumpkin seeds, chia seeds, hemp seeds, or flax seed
Pretzels: crushed pretzels create a yummy sweet & salty combo (potato chips work, too!)
Spices: in addition to cinnamon, add a pinch of nutmeg, ginger, or pumpkin spice
Sprinkles: toss in rainbow sprinkles for colorful cookies
Cocoa: turn the recipe into double chocolate cookies by adding 1-2 tablespoon cocoa powder

How to store leftover banana oat cookies

To store leftover cookies, place them inside a sealed container. Keep at room temperature for 2 days or inside the refrigerator for 5 days.

peanut butter chocolate chip banana oatmeal cookies laying on white parchment paper surrounded by ingredients in white bowls

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If you try these Peanut Butter Banana Oatmeal Cookies, please let me know your thoughts by leaving a rating and comment below! Ready for more? Subscribe to my newsletter or follow along on Instagram and YouTube!