Easy 5-Ingredient Banana Oatmeal Cookies That Are Soft and Chewy

Banana Oatmeal Chocolate Chip Cookies are my favorite way to save spotty bananas because they use simple pantry ingredients. In fact, there’s no flour and no refined sugar. They are soft, chewy, and ready in 15 minutes, so they taste like a real treat. However, they are healthy enough for breakfast. Once you try one warm with melty chocolate chips, you’ll never toss a ripe banana again.

Why You’ll Love This Recipe

First of all, you'll love how easy this recipe is. Because it needs only one bowl, there is almost no clean-up. Moreover, these cookies are naturally vegan and flour-less. Therefore, they work for many diets. Although they are healthy, they still taste like a real cookie.

• Naturally Sweet, No Refined Sugar – Sweetened only with ripe bananas, so you can enjoy a cookie that actually loves you back.
• Soft, Chewy & So Satisfying – Made with hearty oats, every bite is thick, chewy, and packed with melty chocolate chips.
• Quick & Pantry-Friendly – One bowl, simple ingredients you already have, and ready in under 20 minutes.
• Kid-Approved & Meal-Prep Friendly – Perfect for lunchboxes, afternoon snacks, or healthy breakfast cookies on the go. They store beautifully!
• Customizable – Add raisins, walnuts, pumpkin seeds or any seeds or dried fruits you like— make them yours every time.

Key Ingredients

For these banana oatmeal chocolate chip cookies all you need is these 5 simple ingredients from your pantry — no flour, no eggs, no refined sugar! Specifically, you will need banana, rolled oats, peanut butter, flax-seed, and chocolate chips. In addition, I add cinnamon, vanilla, and a pinch of salt for extra flavor.

• Overripe Banana – The star! Ripe bananas naturally sweeten the cookies, add moisture, and bind everything together without any added sugar or eggs. The riper, the better.
• Rolled Oats – Hearty, chewy, and flour-free. They give the cookies their thick, wholesome texture and keep you full longer. Use gluten-free oats if needed.
• Peanut Butter – Adds richness, healthy fats, and helps hold the cookies together. It makes them extra soft and satisfying. You can swap with almond butter if you prefer.
• Ground Flax-seed – My little nutrition boost! It works as an egg replacer, adds fiber and omega-3s, and gives the cookies a slightly nutty flavor.
• Chocolate Chips – Because everything is better with chocolate. They melt into gooey pockets of sweetness. I use dark chocolate chips for a healthier touch.

How to Make Banana Oatmeal Chocolate Chip Cookies

Step 1: First Make the Flax Gel. In a small bowl, mix 1 tbsp ground flax-seed with 1 tbsp water. Let it sit for 5 minutes until it forms a gel. This is our binder since we only use one banana. Ground flax seed is rich in fiber and omega-3s.

Step 2: Next in a medium bowl, mash very ripe banana then add flax egg, vanilla, maple syrup if using until completely smooth — no lumps remained.

Step 3: Mix the Dough. After you mash the banana, stir in rolled oats, cinnamon, a pinch of sea salt and dark chocolate chips. Let the dough rest for 5 minutes so the oats absorb.

Step 4: Preheat your oven to 350°F / 175°C and line a baking sheet with parchment. Scoop about 1.5 tbsp of dough per cookie onto your prepared sheet and flatten slightly with your fingers. These cookies do not spread while baking. Makes 7-8 small cookies.

Step 5: Bake for 12-14 minutes until edges are firm and bottoms are lightly golden — centers will still be soft. Cool for 5 minutes on the sheet, they firm up as they cool. Enjoy warm with melty chocolate!

Storage Tips

• Room Temperature: Store in an airtight container for up to 2 days. Since these are made with fresh banana, they stay soft and moist.
• Fridge: Keep in an airtight container in the fridge for up to 4-5 days. They get even chewier when chilled.
• Freezer: Freeze baked cookies for up to 2 months. Place parchment paper between them so they don't stick. Thaw overnight in the fridge or at room temperature for 30 minutes.
• To Reheat: Warm in the microwave for 10-12 seconds or in a 300°F / 150°C oven for 3-4 minutes to bring back that fresh-baked softness and melty chocolate chips.

Frequently Asked questions

• Are these banana oatmeal cookies vegan?
• Yes. They have no egg, no dairy. Use maple syrup, not honey. And use dairy-free chocolate chips.

• Are they gluten-free?
• They can be. Use certified gluten-free rolled oats. Oats are naturally gluten-free but often cross-contaminated.

• Why are my cookies crumbly?
• You skipped the 5-minute rest. Oats need time to absorb. Also mash banana completely smooth.

• Can I double the recipe?
• Yes. Double all ingredients. Use 2 bananas. Baking time stays the same.

• Can I use oat flour or porridge oats instead of rolled oats?
• Yes, but texture changes. Rolled oats give chewy cookies. Porridge oats / quick oats make them softer. Oat flour makes them cakey. If using oat flour, use 50g only — not 65g — or dough will be too wet.