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Home » Dessert » Cookies

Blueberry oat cookies

Published: Mar 13, 2025 by Helena

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These healthy Blueberry oat cookies are easy to make, refine sugar free, vegan and gluten-free. They make a great meal prep to have for breakfast or as a snack, loaded with flavor and studded with sweet blueberries.

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The cookies on parchment paper with fresh blueberries on the side.

These healthy oatmeal blueberry cookies are easy to make and filled with flavor and studded with blueberries. For this recipe I used walnuts for a little crunch and flavor, just like in this Blueberry banana baked oatmeal.

For more healthy recipes with oats, banana and blueberries, try this Blueberry banana overnight oats or these Banana blueberry oatmeal muffins.

Jump to:
  • Ingredients
  • Instructions
  • Substitutions and variations
  • Storage
  • Top Tip
  • FAQ
  • Healthy cookies:
  • Blueberry recipes:

Ingredients

These banana blueberry oatmeal breakfast cookies are easy to make. All you need are a few, basic ingredients listed below.

For the full written recipe with the ingredient measurements, scroll down to view the recipe card at the bottom of the page.

The ingredients to make these cookies.
  • Bananas, the riper the better. Ripe banana are sweet and creamy and will make the best banana blueberry oatmeal breakfast cookies. 
  • Natural peanut butter, or other nut butter of choice. Use smooth or crunchy. 
  • Maple syrup, or other liquid sweetener like agave syrup or honey for non vegan cookies. 
  • Rolled oats or Quick oats, use rolled oats for more texture and quick oats for a softer, chewier cookie.
  • Cinnamon, a little warming cinnamon goes so well with the banana and peanut butter flavours. 
  • Salt, a little salt balances all the flavours. 
  • Chopped walnuts, great crunch and flavor. Other nuts like pecans, almonds or hazelnuts are also great choices.
  • Blueberries, fresh or frozen

See recipe card for quantities.

Instructions

These Blueberry oatmeal cookies are easy and fast to make. Perfect for meal prep! 

Follow along with the with the step-by-step photos below. For the full written instructions, see the recipe card at the bottom.

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The mashed bananas in a mixing bowl.
  1. Step 1: To a mixing bowl, add the bananas and mash well until creamy. Add the peanut butter, maple syrup and vanilla extract and stir well.
The dry ingredient dded to the bowl with the mashed bananas.
  1. Step 2: Add the rolled oats, chopped nuts, cinnamon and salt and stir well to combine. 
The batter with the blueberries folded in.
  1. Step 3: Fold in the blueberries.
The cookies on the baking sheet.
  1. Step 4: Using a cookie scooper or a spoon, divide the cooke dough into 3 tablespoon balls. Place them on a baking sheet. Flatten with your hand to form a cookie shape.
The baked cookies on the baking sheet.

Bake until slightly golden brown on the edges, and still soft in the middle.

Hint: Allow to cool for 10 minutes on the baking sheet before transferring.

For the full written recipe, see the recipe card at the bottom:

Jump to Recipe
The cookies on a small white plate.

Substitutions and variations

  • Gluten-free – Oats are naturally gluten-free, but they may contain traces of gluten. For a gluten free blueberry cookie, use certified gluten-free rolled oats. They can be found in the gluten-free section of the grocery store. 
  • Vegan – To keep these cookies vegan, use maple syrup as a sweetener.
  • Berries – The blueberries ads a pop of sweet berry flavor to these healthy oatmeal cookies. If you don’t have blueberries, add other berries of choice like chopped strawberries, blackberries or raspberries are other good options.
  • Sweetener  – The ripe banana will add a lot of sweetness in addition with a little maple syrup. Other options are honey for non vegan or agave syrup. For a sweeter cookie, add a little brown sugar or coconut sugar.
  • Nut butter – This recipe uses natural peanut butter. Other great options are creamy almond butter or cashew butter or this homemade Pecan Almond Butter to make almond butter oat cookies. 
  • Nuts – These Cookes have some chopped walnuts for great crunch and flavor. Add any chopped nuts of choice, some good options are chopped almonds, pecans or hazelnuts.
  • Lemon – Add the zest of one lemon to the cooke batter to make blueberry lemon oatmeal cookies.
The cookies on parchment paper with fresh blueberries on the side.

Storage

This healthy cookie recipe makes about 14 cookies, so they are perfect for meal prep. Store them in an airtight container, in the fridge for about 4-5 days. 

These eggless oat cookies can also be frozen for up to 3 months. Perfect to keep in the freezer and just take out one at a time as you need them.

The cookies cut in half with fresh blueberries on the side.

Top Tip

Since these healthy blueberry cookies are naturally sweetened, mostly with bananas, so it is important to use very ripe bananas for the best texture and taste. Ripe bananas have a creamy texture and are a lot sweeter than when they are green. This is a great way of using those bananas that have gotten just a little bit too ripe for eating as they are.

The cookies on parchment paper with fresh blueberries on the side.

FAQ

Can I use frozen blueberries in these oatmeal cookies?

Yes, frozen blueberries works great! Just add them frozen to the cookie batter and then bake.

Can I make them nut free?

Yes, you can use sunflower butter instead of the peanut butter and omit the chopped walnuts, or replace them with sunflower seeds.

Healthy cookies:

  • Melted chocolate chip onto of Banana Coconut Cookies
    Banana Coconut Cookies (Vegan and Gluten-free)
  • Gluten-free Vegan Oatmeal Raisin Cookies on parchment paper.
    Vegan Oatmeal Raisin Cookies (Gluten-Free)
  • Chia Oatmeal Cookies (Vegan and Gluten-free)
    Chia Oatmeal Cookies (Vegan and Gluten-free)
  • Chocolate and peanut butter cookies dipped in melted chocolate and topped with chopped peanuts.
    Vegan 4 ingredient peanut butter cookies

Blueberry recipes:

  • The overnight oats in 2 glasses topped with banana slices and fresh blueberries.
    Blueberry banana overnight oats
  • A slice of baked oatmeal on a small plate topped with banana slices and blueberries and a drizzle of maple syrup.
    Blueberry banana baked oatmeal
  • The blueberry overnight oats in a glass topped with yoghurt, berries and nuts.
    Blueberry overnight oats
  • Fruit salad with honey dressing served in a bowl with a spoon.
    Fruit Salad with Honey dressing

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Let me know what you think by leaving a comment down below, and tagging me at @thedeliciousplate in your picture on Instagram. Your feedback is so helpful! Also, don’t forget to subscribe to my newsletter to be sure not to miss my latest recipes!

The cookies on parchment paper with fresh blueberries on the side.
Print
Blueberry oat cookies
Prep Time
10 mins
Cook Time
15 mins
Total Time
30 mins
 

These healthy Blueberry oat cookies are easy to make, refine sugar free, vegan and gluten-free. They make a great meal prep breakfast or snack, loaded with flavor and studded with sweet blueberries.

Servings: 14 cookies
Author: Helena
Ingredients
  • 3 large very ripe bananas
  • ¾ cups natural peanut butter, smooth or crunchy
  • ⅓ cups maple syrup or honey
  • 1 teaspoon vanilla extract
  • 3 cups rolled oats, or quick oats for finer texture
  • 1 teaspoon cinnamon
  • ¼ teaspoon salt
  • ½ cup chopped nuts, walnuts or nuts of choice
  • 1 cup blueberries, fresh or frozen
Instructions
  1. Preheat the oven to 160C (325F) and line a cookie sheet with parchment paper.
  2. To a mixing bowl, add the bananas and mash well until creamy.
  3. Stir in the peanut butter, maple syrup and vanilla extract until smooth.

  4. Add the oats, chopped nuts, cinnamon and salt and stir well to combine. Fold in the and blueberries.

  5. Using a cookie scooper or a spoon, divide the cooke dough into 3 tablespoon balls. Place them on the prepared baking sheet. Flatten with your hand to form a cookie shape. Makes about 14 large cookies.

  6. Bake for 15-18 minutes, they should be slightly golden brown on the edges, and still soft in the middle. Allow to cool for 10 minutes on the baking sheet before transferring.

More Cookies

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    Vegan chocolate peppermint cookies
  • Vegan oatmeal cookies on a cooling rack.
    Vegan Oatmeal Cookies
  • The baked cookies on a cooling rack.
    Vegan double chocolate cookies

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Hi, I'm Helena!

Welcome to my blog, The Delicious Plate!

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