4 Ingredient Blueberry Oatmeal Cookies


Looking for a simple and wholesome treat that’s perfect for breakfast or snacking? Try our 4 Ingredient Blueberry Oatmeal Cookies! Made with just oats, bananas, peanut butter, and blueberries, these cookies are easy to whip up and packed with nutritious ingredients. Whether you enjoy them fresh out of the oven or on-the-go, these cookies are sure to become a new favorite in your household. Let’s dive into how to make these delicious and guilt-free treats!


  • 2 cups rolled oats (gluten-free, if needed)
  • 2 large bananas, mashed
  • 1/2 cup peanut butter
  • 1/4 cup blueberries


  1. Preheat the oven to 180C/350F. Line a cookie sheet or baking tray with parchment paper and set aside.
  2. In a large mixing bowl, combine your oats, mashed bananas, and peanut butter. Mix well until all ingredients are fully incorporated.
  3. Gently fold in the blueberries using a rubber spatula, being careful not to overmix.
  4. Form 12 balls of dough and place them on the lined tray. Press each ball into a cookie shape, flattening them slightly with your fingers.
  5. Bake the cookies for 10-12 minutes, or until they are golden on the edges and just cooked in the center.
  6. Remove the cookies from the oven and allow them to cool on the tray for 10 minutes before transferring them to a wire rack to cool completely.

Serving and Storage Tips:

Serving Tips:

  1. Enjoy Freshly Baked: These Blueberry Oatmeal Cookies are best enjoyed fresh out of the oven when they are still warm and aromatic. Serve them as a delightful breakfast treat or enjoy them as a wholesome snack throughout the day.
  2. Pair with Your Favorite Beverage: Serve these cookies alongside a cup of hot coffee, tea, or a refreshing glass of milk for a cozy and satisfying snack experience. The combination of flavors will tantalize your taste buds and leave you feeling satisfied.
  3. Share with Friends and Family: Whip up a batch of these cookies to share with friends and family during gatherings, picnics, or potlucks. They are sure to be a crowd-pleaser and will earn you rave reviews for their simplicity and deliciousness.
  4. Customize with Toppings: Get creative with toppings by drizzling melted chocolate over the cooled cookies or dusting them with powdered sugar for an extra special touch. Experiment with different toppings to suit your taste preferences and add a touch of elegance to your presentation.

Storage Tips:

  1. Store in an Airtight Container: Once cooled completely, transfer the Blueberry Oatmeal Cookies to an airtight container to preserve their freshness and prevent them from drying out. Place a piece of parchment paper between layers to prevent sticking.
  2. Room Temperature: These cookies can be stored at room temperature for up to 3-4 days. Be sure to keep them in a cool, dry place away from direct sunlight and heat sources to maintain their texture and flavor.
  3. Refrigeration: If you prefer your cookies to have a chewier texture, you can store them in the refrigerator for up to a week. Simply place them in an airtight container or resealable bag and store them on a shelf away from strong-smelling foods.
  4. Freezing: Blueberry Oatmeal Cookies can also be frozen for longer-term storage. Place them in a single layer on a baking sheet and freeze until firm, then transfer them to a freezer-safe bag or container. They can be stored in the freezer for up to 2-3 months. Thaw them at room temperature or gently reheat them in the oven before serving.

By following these serving and storage tips, you can ensure that your 4 Ingredient Blueberry Oatmeal Cookies remain fresh, flavorful, and ready to enjoy whenever you need a wholesome and satisfying treat. Whether enjoyed at home or shared with loved ones, these cookies are sure to bring joy and delight to any occasion.


   1.What are 4 Ingredient Blueberry Oatmeal Cookies?

  • 4 Ingredient Blueberry Oatmeal Cookies are simple and wholesome cookies made with just four basic ingredients: rolled oats, ripe bananas, peanut butter, and fresh blueberries. They are a delicious and nutritious snack or breakfast option.

   2.Are these cookies suitable for a gluten-free diet?

  • Yes, these cookies can be made gluten-free by using certified gluten-free rolled oats. Ensure that all other ingredients are also gluten-free to accommodate a gluten-free diet.

   3.Can I use frozen blueberries instead of fresh ones?

  • While fresh blueberries are recommended for the best flavor and texture, you can use frozen blueberries if fresh ones are not available. However, keep in mind that frozen blueberries may release more moisture into the dough.

   4.Are these cookies vegan-friendly?

  • Yes, these cookies are vegan-friendly as they do not contain any animal products. Ensure that the peanut butter you use is vegan, and you’re good to go!

   5.How should I store leftover cookies?

  • Store leftover cookies in an airtight container at room temperature for up to 3-4 days. You can also store them in the refrigerator for a chewier texture or freeze them for longer-term storage.

   6.Can I add other mix-ins to the cookie dough?

  • Yes, feel free to customize the cookies by adding your favorite mix-ins such as chocolate chips, nuts, or dried fruit. Get creative and experiment with different flavor combinations!

   7.Are these cookies sweet enough without added sugar?

    • The natural sweetness from the ripe bananas and blueberries provides ample sweetness to the cookies. However, if you prefer sweeter cookies, you can add a touch of maple syrup or honey to the dough.

   8.Can I make a larger batch of these cookies?

  • Absolutely! Simply double or triple the ingredients to make a larger batch of cookies. Adjust the baking time as needed and enjoy having plenty of delicious cookies on hand.

   9.Are these cookies suitable for meal prep?

  • Yes, these cookies are perfect for meal prep as they are quick and easy to make. Bake a batch ahead of time and store them in individual portions for a convenient grab-and-go breakfast or snack option.

  10.Can I substitute peanut butter with another nut or seed butter?

  • Yes, you can substitute peanut butter with almond butter, cashew butter, or any other nut or seed butter of your choice. Choose your favorite to customize the flavor of the cookies to your liking.

11. Can I use quick oats instead of rolled oats for these cookies?

  • While rolled oats are recommended for the best texture, you can use quick oats as a substitute if that’s what you have on hand. Keep in mind that quick oats will result in a slightly softer texture in the cookies. Adjust the amount of oats as needed to achieve the desired consistency of the dough.


With just four simple ingredients, our Blueberry Oatmeal Cookies are a nutritious and delicious treat that’s perfect for any time of day. Whether you enjoy them for breakfast, as a snack, or as a guilt-free dessert, these cookies are sure to satisfy your sweet cravings while providing a boost of energy and nutrition. Give them a try today and discover a new favorite cookie recipe that’s both easy and healthy!

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