These soft and chewy oatmeal cookies are full of blueberry flavor. The cookies are just 3 ingredients and don’t require any flour, eggs, added sugar or butter. They can be enjoyed for breakfast, snack or dessert.
Blueberries are starting to come in season and I just love baking with blueberries. These cookies have sweet blueberries mixed in with every bite. I love biting in and tasting the burst of sweet blueberry juices. They only take about five minutes to prepare and they store well too.
- Quick Oats
Quick Oats: Quick oats are oats that have been further processed so they are smaller and thinner than regular oats and cook faster. They don’t have any added sugar. Quick oats work best for this recipe. They result in cookies that are softer while also still chewy. If you don’t have quick oats you can also make your own by pulsing old fashioned/rolled oats in the food processor a few times until they are the size of quick oats.
Blueberries: I used fresh blueberries for these cookies though you can also use frozen. Try to use sweet fresh blueberries if possible.
Bananas: Make sure to use very ripe bananas. Very ripe bananas have more moisture and are easier to mash. Bananas provide natural sweetness for these cookies and act as a binding agent.
How to Make Blueberry Oatmeal Cookies
Stir the blueberries and mashed bananas together. Mix in the oats until the oats are fully coated. You should have a thick oat mixture that looks like a cookie dough made of oats. Scoop the dough with a cookie scoop and release onto a prepared baking sheet. Use the back of a large metal spoon to flatten the dough balls into thick disks. The cookies are then ready to be baked.
These cookies are lightly sweetened. If you are use very ripe bananas and sweet blueberries, I think the sweetness level is just enough. However, if you prefer sweeter cookies, you can add 1-2 tbsp of maple syrup or honey to the cookie dough. You can also add sweet mix-ins like dried blueberries or chocolate chips.
More Oatmeal Recipes
- 3 Ingredient Strawberry Oatmeal Cookies
- 3 Ingredient Chewy No Bake Oatmeal Bars
- 3 Ingredient Crispy Oatmeal Cookies
3 Ingredient Blueberry Oatmeal Cookies
- 1/2 cup (77 g) halved fresh blueberries
- 1/2 cup (123 g) mashed very ripe bananas
- 1 cup (88 g) quick oats
- Preheat oven to 350°F (177°C). Line a large cookie sheet with parchment paper or a silicone baking mat.
- Add halved blueberries and mashed bananas to a large mixing bowl. Stir until they are evenly mixed.
- Add in oats. Stir until the oats are evenly mixed and fully coated in banana. The mixture will be thick.
- Use a 1.5 tbsp cookie scoop to scoop out cookie dough. Release cookie dough onto the prepared baking sheet, spacing the dough balls about 1.5 inches apart. Use the back of a metal spoon to press down on each cookie dough ball so that it forms a thick round disk. Smooth the sides of the cookie disks if desired. The cookies will not spread during baking so you want to shape the cookies to how you want the final outcome to be.
- Bake cookies for about 12-13 minutes or until the blueberries are softened (and just starting to release their juices) and the cookies are fully cooked. Let cookies cool before removing them from the baking sheet. Store uneaten cookies in the fridge or freezer.
- This recipe works best with fresh sweet blueberries. Cut the blueberries in half before measuring out 1/2 cup. The reason for cutting the berries is so they are smaller and more evenly distributed throughout. It is also so that they will soften and cook faster because the cookies are not in the oven that long.
- Since the cookies are cooked only a short time, the blueberries will not fully release their juices when the cookies are done. It's okay if some of the blueberry halves still look plump. This way when you bite in, the soft sweet blueberry juices will release as you eat the cookie.
- Make sure to finely mash the bananas until very few lumps remain. Measure out 1/2 cup after the bananas are mashed. You will need a little more than one large banana to yield 1/2 cup of mashed bananas.
- The cookies are only lightly sweetened. If you want them sweeter, you can add chocolate chips, dried fruit or other mix-ins. You can also stir in 1-2 tbsp of maple syrup or honey to the cookie mixture (or however much needed to taste).
- You can also add 2 tbsp of peanut butter or almond butter to the cookie dough to give them more fat and flavor.
The nutrition information provided are only estimates based on an online nutritional calculator. I am not a certified nutritionist. Please consult a professional nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.