These 3 ingredient oatmeal cookies are soft, easy to make, and perfect when you want a quick homemade treat. Made with oats, ripe bananas, and sugar-free chocolate chips, they are a simple cookie recipe with no flour, eggs, sugar, dairy, butter, or oil.

Why You'll Love It
- Only 3 simple ingredients
- No flour, eggs, sugar, dairy, butter, or oil
- Naturally sweetened with ripe bananas
- Ready in about 15 minutes
What I love about these 3-ingredient oatmeal cookies is how simple and reliable they are. Everything comes together in one bowl, and the cookies bake in just a few minutes, which makes them perfect for busy days. The oats give them a soft and hearty texture, while the ripe banana adds natural sweetness and helps bind everything together without flour or eggs. They remind me of the kind of easy baking I reach for when I want something quick, similar to my 3-ingredient peanut butter oatmeal cookies or a simple slice of easy yogurt cake.
I like keeping recipes like this in regular rotation because they use everyday ingredients and still feel like a proper treat. When I have a couple of ripe bananas on the counter and oats in the pantry, I already know I have the base for an easy oatmeal cookie recipe without dairy, butter, or oil. The chocolate chips add just enough richness to make each bite feel special. For the same kind of simple homemade baking, I also enjoy making my double chocolate chip cookies when I want something richer, or lemon curd cake with cream cheese frosting when I am in the mood for a brighter dessert.

Key Ingredients in 3 Ingredient Oatmeal Cookies
You'll find the exact measurements in the recipe card, but here's a closer look at a few of the ingredients and why I use them.
- Bananas: I like using very ripe bananas because they add natural sweetness and moisture while also helping bind the cookies together without eggs.
- Quick Oats: Quick oats give the cookies their structure and soft chewy texture. They absorb the banana mixture well and help the cookies hold their shape.
- Sugar-Free Chocolate Chips: I like using sugar-free chocolate chips because they add rich chocolate flavor without refined sugar. They balance the sweetness of the banana while keeping the ingredient list simple.
How to Make 3 Ingredient Oatmeal Cookies
You can find the complete printable recipe with measurements below, but for now, here's a quick overview of how it goes:

1. Mash the Bananas: Place the ripe bananas in a mixing bowl and mash them well with a fork until smooth.
2. Mix the Ingredients: Add the quick oats and sugar-free chocolate chips to the mashed bananas and stir until everything is evenly combined.
3. Shape the Cookies: Scoop portions of the mixture onto a lined baking sheet and gently flatten them since the cookies do not spread much during baking.
4. Bake the Cookies: Bake at 350°F / 180°C (320°F convection / 160°C fan) for 12-15 minutes, until the cookies are set and lightly golden.

Tips for the Best 3 Ingredient Oatmeal Cookies
Use Very Ripe Bananas: I like bananas with plenty of brown spots because they make the cookies sweeter and help create a softer texture.
Flatten the Cookies Slightly: These cookies do not spread much in the oven, so pressing them gently into shape helps them bake evenly.
Let the Cookies Cool before Removing: The cookies firm up as they cool, so letting them sit for a few minutes helps them hold together better.
Storage
Store the cookies in an airtight container at room temperature for up to 2 days, or keep them in the refrigerator for about 5 days. They also freeze well if you want to keep a batch ready for later.
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Recipe

3 Ingredient Oatmeal Cookies
Ingredients
- 2 ripe bananas
- 180 g quick oats
- 120 g sugar-free chocolate chips
Instructions
- Preheat the oven to 350°F / 180°C (320°F convection / 160°C fan) and line a baking sheet with parchment paper.
- Place the 2 ripe bananas in a bowl and mash them well with a fork until smooth.
- Add 180 g quick oats to the mashed bananas and stir until well combined. Fold in 120 g sugar-free chocolate chips.
- Scoop spoonfuls of the mixture onto the prepared baking sheet and gently flatten them slightly since the cookies do not spread much during baking.
- Bake for 12-15 minutes, until the cookies are set and lightly golden around the edges.
- Let the cookies cool on the baking sheet for a few minutes before transferring them to a rack.
Notes
Nutrition
Nutritional information is based on third-party calculations and should be considered an estimate only. Actual nutritional content will vary based upon brands used, measuring methods, cooking method, portion sizes, and more.










Julia says
I tried these 3 ingredient oatmeal cookies and couldn’t believe how easy they were to make with such simple ingredients. They turned out soft, naturally sweet, and perfect for a quick snack without any fuss.