These Chocolate Oatmeal Cookies are simple, healthy cookies rich in protein and fiber, and made with no dairy, no eggs, and no added sugar.
While the whole recipe is just below, don’t miss all my tips further down, including ingredient swaps, my cooking tips, and step-by-step shots!
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Chocolate Oatmeal Cookies
Ingredients
- 1 cup Mashed Ripe Banana - (note 1)
- ¼ cup Peanut Butter (Unsalted) - (note 2)
- ⅓ cup Unsweetened Cocoa Powder
- 1 ½ cups Old-Fashioned Rolled Oats - (note 3)
- 3 tablespoons Chia Seeds - (note 4)
- 2 tablespoons Almond Milk - (note 5)
- ⅓ cup Chocolate Chips - (note 6)
Optional
- ⅓ cup Chopped Pitted Dates - for sweeteness
- 1 teaspoon Vanilla Extract
- ¼ cup Coconut Sugar - if bananas are not ripe enough
Instructions
- Preheat the oven to 350°F (180°C).
- Line two large cookie sheets with parchment paper. Slightly oil the paper with cooking oil spray. Set aside.
- Mash the bananas and pack them in a 1-cup measuring cup to measure precisely.
- In a large mixing bowl, combine all the ingredients: mashed banana, peanut butter, cocoa, oats, chia seeds, milk, chocolate chips, and any optional ingredient you choose to add.
- Stir with a rubber spatula until fully combined, and a sticky chocolate cookie dough forms. If too dry, add a little more milk to bring together.
- Use a cookie dough scoop to form 9 large cookie dough balls. Place each ball onto the prepared baking tray, leaving one inch of space between each of them. They won't extend in the oven; the shape you give now is the shape you get after baking.
- The dough is sticky, and that's normal. Lightly oil the back of a fork and press down each cookie dough balls slightly to form a round cookie shape. if the sides cracks as you press wet your fingers and pat to form a nicely round cookie.
- Bake the cookies for 20-24 minutes at 350°F (180°C) until dry on top.
- Let the cookies cool on the cookie sheet for 15 minutes. They firm up as they cool down. Don't touch them. Sprinkle a few more chocolate chips on top, and let them melt for a boost of sweetness.
- Transfer them to a cooling rack for 30 minutes.
Notes
Nutrition
Ingredients and Substitutions
You only need a few simple ingredients to make this recipe. Here’s how to pick and swap them.

- Mashed Ripe Banana – This ingredient is the primary binder and sweetener. The cookies get all their sweetness from the banana’s natural sugars, so using bananas that are super ripe – the “ugly” ones with black skin – is key to preventing a bitter taste from the cocoa powder. If your bananas aren’t ripe enough, you can boost the sweetness by adding a quarter to a third of a cup of a granulated sweetener like coconut sugar or date sugar. You can also use unsweetened applesauce as a substitute for a different flavor profile.
- Peanut Butter – This adds fat and flavor, giving the cookies a rich, chewy texture. For a nut-free option, you can swap it with cashew butter, almond butter, or sunflower seed butter.
- Unsweetened Cocoa Powder – This gives the cookies their rich chocolate flavor and color without any added sugar.
- Old-Fashioned Rolled Oats – These are the base of the cookie, providing structure, chewiness, and a big boost of fiber. Quick oats also work, but rolled oats will give a more traditional chewy texture.
- Chia Seeds – These act as a binder, helping to hold the cookies together. They also add a lot of fiber and a nice chewiness. The only good substitute here is flaxseed meal.
- Almond Milk – This adds moisture to the dough to make sure all the ingredients combine into a sticky consistency. You can use any milk you have on hand, like oat milk, soy milk, or coconut milk.
- Chocolate Chips – These are a classic choice for added texture and sweetness. You can use semi-sweet chocolate chips for a big boost of sweetness, or go for a 70% to 85% dark chocolate chopped into chunks for a lower-sugar option. You can also swap them for chopped nuts like pecans or walnuts.
How to Make Chocolate Oatmeal Cookies




Carine’s Baking Tips
Let me share a few more tips for perfect cookies.
- Mind Your Measurements – Make sure you measure your mashed banana by packing it tightly into the measuring cup. This helps you get a precise amount, which is important for the cookie’s final texture.
- Don’t Overbake – These cookies will stay soft, so they’re ready when they look dry on top and have firmed up slightly. Since they don’t get golden, look for a matte finish instead of a glossy one.
- Let Them Rest – After baking, let the cookies cool completely on the baking sheet. They are very delicate and soft when they come out of the oven, but they firm up as they cool. Moving them too early can cause them to fall apart.
- Add-in Versatility – This is a great base recipe that you can customize! You can stir in other ingredients like chopped dates, chopped nuts, or even a teaspoon of vanilla extract to change the flavor.







Hi! I’ve made a different recipe from your amazing website for work each day this week! I’ll make these for Thursday with chocolate chips and chopped up white chocolate peppermint kisses.
Thank you SO much for baking so many of my recipes! I look forward to hear your feedbacks on these cookies!
Hi there! What would you suggest using instead of oats? Unfortunately can’t eat oats.
You can use quinoa flakes, you might need more as it doesn’t absorb the liquid as much.
I want to add unsweetened coconut. should add more milk?
I am pretty sure you can safely manage to stir in up to 1/3 cup without adjusting anything else.