Some days I just want a quick little treat that tastes homemade without dragging out half the kitchen. These flourless oatmeal cookies are exactly that kind of recipe. They're naturally sweet from bananas, loaded with peanut butter for that cozy nuttiness, and the oats give them the soft chewy texture that makes you sneak back for one more.
What I love most is how ridiculously easy they are. Mash, stir, bake, done. The kind of cookies you can make while chatting with your kids or trying to convince your cats not to knock everything off the counter again! And if you're like me and always looking for simple ideas, try my No Bake Peanut Butter Balls for a fun little meal prep moment.
The ingredients
Oats: Quick oats work best. They make the cookies tender and help them bind since there's no flour.
Bananas: Use ripe ones. The more speckled, the sweeter your cookies.
Peanut Butter: Creamy works beautifully but crunchy adds a nice bite. Use almond or sunflower butter if needed.
Brown Sugar: Just enough to round out the sweetness.
Chia Seeds: They give structure and a little nutrition boost.
Hemp Seeds: Optional, but I add them for protein and a lightly nutty flavor.
Chocolate Chips: Optional but honestly… just add them.
Vanilla Extract: For flavor.
Milk of Your Choice: Helps hydrate the oats.
Salt: A small pinch that makes everything pop.
See recipe card for quantities
Step-by-Step Instructions for the Flourless Oatmeal Cookies
Mash the bananas in a large bowl until smooth and creamy.
Stir in the peanut butter and brown sugar until everything blends into a thick batter.
Fold in the oats, chia seeds, and hemp seeds so they're evenly coated.
Add chocolate chips if you want a little melty indulgence.
Pour in the vanilla and milk, mixing gently until the dough comes together.
Scoop the dough onto a parchment-lined baking sheet and gently flatten.
Bake at 350°F for 10-12 minutes until golden around the edges.
Cool on a rack so they firm up and get perfectly chewy.
Sophie Tips
- If your bananas are pale and firm, microwave them 20 seconds to soften.
- Want thicker cookies? Use slightly more oats.
- If the dough feels too wet, let it sit 5 minutes. Oats absorb moisture fast.
- For a deeper flavor, add a tiny splash of maple syrup.
Variations
- Chocolate Chip Flourless Oatmeal Cookies
- Banana-Free Version using applesauce
- Peanut Butter-Only Cookies for a richer flavor
- Raisin and Cinnamon Version if you love oatmeal raisin
- Vegan Option by using dairy-free milk and chocolate
Serving Ideas
- Crumble over yogurt for breakfast.
- Pack for lunchboxes or road trips.
- Warm one in the microwave and add peanut butter on top.
- Pair with chia pudding for a quick breakfast.
Storage Tips
- Store on the counter for 3-4 days.
- Refrigerate up to a week.
- Freeze up to 3 months.
- Thaw 10 minutes or microwave 10 seconds for that warm cookie vibe.
FAQ
Why are my flourless oatmeal cookies falling apart?
They likely need more moisture. Add a splash of milk or another half banana.
Can I make these cookies without peanut butter?
Yes. Almond butter, cashew butter, or sunflower butter work well.
Can I use rolled oats instead of quick oats?
Yes, but the texture will be rougher and the cookies won't bind as tightly.
Easy Flourless Oatmeal Cookies
Equipment
- Mixing bowl
- Baking sheet
- Parchment
- Cookie scoop
Ingredients
- 2 cups quick oats
- 2 bananas mashed
- ¼ cup peanut butter
- ⅓ cup brown sugar
- 1 tablespoon chia seeds
- 1 tablespoon hemp seeds
- ¼ cup chocolate chips
- 1 teaspoon vanilla
- ¼ cup milk of choice
- Pinch of salt
Instructions
- Preheat the oven to 350°F and line a sheet with parchment.
- Mash the bananas until smooth.
- Mix in peanut butter and sugar until combined.
- Stir in oats, chia, and hemp seeds.
- Add chocolate chips, vanilla, and milk.
- Scoop the dough and flatten slightly.
- Bake 10-12 minutes until lightly golden.
- Cool fully before eating.
Notes
- The riper the banana, the sweeter the cookie.
- Letting the dough rest helps the oats soften.
- Add cinnamon for a cozy fall flavor.
- Use dairy-free chocolate to keep them vegan
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