
This blueberry oatmeal cookie recipe transforms simple ingredients into a quick, nutritious treat that's perfect for breakfast or snacking. I've been making these cookies for years as a healthier alternative to store-bought breakfast bars, and they've become my go-to solution for busy mornings.
These cookies have saved countless mornings in my household. My children originally turned their noses up at "healthy cookies," but now they request these specifically when they need a quick breakfast before school.
Ingredients
- Rolled oats: Use gluten free if needed. Oats provide hearty texture and fiber that keeps you full all morning.
- Ripe bananas: Choose ones with brown spots for maximum sweetness. They naturally sweeten the cookies and help bind everything together.
- Peanut butter: Provides protein and healthy fats. Choose natural peanut butter without added oils or sugar for best results.
- Fresh blueberries: Add bursts of flavor and antioxidants. Wild blueberries offer more intense flavor if you can find them.
Step-by-Step Instructions
- Prepare Your Oven:
- Preheat to 350°F/180°C and line a baking sheet with parchment paper. Proper preheating ensures even cooking and the parchment prevents sticking without added oils.
- Mix The Base:
- Combine oats, mashed bananas, and peanut butter in a large bowl until thoroughly incorporated. The mixture should be thick but moldable. If too dry, add a bit more mashed banana.
- Add Blueberries:
- Gently fold in the blueberries using a rubber spatula with a light hand. This prevents crushing the berries which would stain the dough and make it too wet.
- Form And Shape:
- Divide the mixture into 12 equal portions and roll into balls. Place them on your lined baking sheet with space between each. Press down slightly to form cookie shapes about half an inch thick.
- Bake To Perfection:
- Bake for 10-12 minutes until the edges turn golden brown while centers remain slightly soft. Watch carefully after 10 minutes as oats can quickly go from golden to burnt.
- Cooling Process:
- Allow cookies to rest on the baking sheet for 10 minutes before transferring to a wire rack. This resting period helps them firm up enough to move without breaking.

The secret to these cookies is in the banana ripeness. I once made them with barely ripe bananas and was disappointed by the lack of sweetness. Now I keep a few bananas ripening specifically for these cookies, and the flavor difference is remarkable.
Make It Your Own
These cookies welcome endless variations based on what you have available. My family enjoys them with almond butter instead of peanut butter for a more subtle nutty flavor. When blueberries aren't in season, dried cranberries or chopped dates work beautifully as alternatives. The base recipe stays the same you just swap in different mix-ins.
Storage Solutions
These cookies maintain their best texture when stored in an airtight container at room temperature for up to three days. For longer storage, keep them in the refrigerator where they'll stay fresh for a full week. The chilled cookies develop an even chewier texture that many of my friends actually prefer to freshly baked ones.
Perfect Pairing Ideas
While these cookies are satisfying on their own, they shine when paired with complementary foods and beverages. Serve with a dollop of Greek yogurt for extra protein, or alongside a glass of cold milk. For a special breakfast, I sometimes sandwich two cookies around a spoonful of cream cheese for a delightful morning treat that still feels virtuous.
Frequently Asked Questions About Recipes
- → Can I use frozen blueberries instead of fresh?
Yes, frozen blueberries work well. Ensure they are thawed and patted dry to prevent extra moisture in the dough.
- → Can I replace peanut butter with another ingredient?
Absolutely! You can use almond butter, cashew butter, or any seed butter for a nut-free option.
- → How do I store these cookies?
Store at room temperature in a sealed container for up to 3 days, or refrigerate for up to 1 week. They are also freezer-friendly for up to 6 months.
- → Are these cookies gluten-free?
If you use gluten-free certified rolled oats, these cookies will be gluten-free.
- → Can I add extra ingredients like chocolate chips?
Yes! Feel free to mix in chocolate chips, chopped nuts, or dried fruits to customize your cookies.