Name: 3 Ingredient Banana Oat Cookies
Prep time: 5 min
Cook time: 15 min
Total time: 20 min
Ingredients: 2 medium Bananas (1 cup mashed, 240g); 1½ cup Instant/Rolled Oats (135g); ⅓ cup Peanut Butter (85g); Chocolate Chips; Nuts; Raisins/Dried Cranberries

Peanut Butter, Banana and Oatmeal are all you need for these chewy 3 Ingredient Banana Oat Cookies. They’re gluten-free, vegan, just overall healthy, and extremely easy to put together. Perfect for a healthy dessert, on-the-go snack or breakfast.

Jump to Recipe

Thinking back, this is probably the first time I made a recipe without going through my endless to-do list or seeing any Instagram post that I couldn’t help but try out. The source of inspiration for this were the PB Powder Oatmeal Cookies that I made a short while ago.

I spent ages trying to find a recipe to base that off of, and everything that popped up had mashed bananas in it. But I thought mashed bananas + oatmeal deserved their own cookie recipe.

They’re not only soft and chewy, but absolutely delicious! I might just bulk-bake these again and pop them in the freezer so I have something when the cravings hit.

What you need

I wanted to keep this one as simple as possible, so there’s quite literally just 3 ingredients in there.

Banana: Use the ripe spotty ones so they’re sweet enough that you don’t need to add any sweetener.
Oatmeal: Rolled or Instant/Quick oats both work for these banana oat cookies, use the gluten-free ones if you need.
Peanut Butter: Creamy, creamy goodness here! Use the natural kind whose only ingredients are peanuts (and I guess salt for the salted version).

Easy, healthy and chewy banana oatmeal cookies made with peanut butter, with no butter, no flour, and no egg, making them a great gluten-free and vegan breakfast option.

How to make and bake

These easy peanut butter banana oatmeal cookies can be made in just one bowl!

Mash the bananas with the back of a fork
Add in the oats and peanut butter and mix it all up

To bake them:

Line a baking/cookie sheet with parchment paper
Scoop out about 2 tablespoons of the mixture onto the sheet and shape/spread it
Bake for 15 minutes at 350°F until they’re golden brown

Some things to note:

The cookies will not spread when baking, so shape them as you would like, they’re going to remain that way.

With 15 minutes you get perfectly soft and chewy cookies, but if you want them to get slightly harder, go for a little longer.

Mix-ins!!

I actually really liked these breakfast cookies as is, the perfect balance of sweetness from the banana, chewiness from the oatmeal and peanut butter flavor without any added sugar or flour at all.

But.

No harm switching things around every now and then right?

Fold in about 3 tablespoons of whatever mix-ins you like before scooping out the batter. Here’s some ideas:

Chocolate Chips
Raisins/Dried Cranberries
Nuts: Walnuts, Almonds, Pecans
Candy-coated Chocolate Candies (like M&M’S)
Sprinkles

These 3 ingredient banana oatmeal breakfast cookies are low in calories, flourless, sugar free and vegan, and are held together by creamy peanut butter!

Why are these good for you?

Low calorie: With simple ingredients, these banana oat breakfast cookies are a lot lighter than the usual.

Sugar-free : These oatmeal cookies are naturally sweetened with the overripe bananas, so they don’t need any added sweeteners or sugar.

Oil-free: With no added oil or butter in here, these cookies are only packed with healthy fats from the natural oils of the peanut butter.

Gluten-free: Use gluten-free oats and turn these banana oat cookies GF, because they’re flourless to begin with – no oat flour either!

Dairy-free: No milk or butter here.
Vegan: Again, no milk or butter like the normal banana oat cookies, and no egg either.

Peanut butter banana cookies are a healthy 3-ingredient recipe that’s made with instant or quick oat, mashed bananas and just peanut butter for a great vegan breakfast, dessert or a snack on the go.

Some more Easy Cookies for Breakfast!