This 4-ingredient Single-Serve Oatmeal Cookie is a cookie for one made in 15 minutes in the oven or air fryer. Plus, this healthy breakfast cookie is also vegan, dairy-free, and full of proteins to keep you full for hours.
I love to make all kinds of cookies. I’m a constant baker, so there’s no single day where there’s not a cookie, bread, muffin tray, or cake cooking. I particularly love making simple, healthy oatmeal cookies for my breakfast, like my Peanut Butter Banana Oatmeal Cookies, Coconut Flour Oatmeal Cookies, or Sweet Potato Oatmeal Cookies.
But sometimes, I just want a quick fix, an oatmeal cookie for one, a single-serving breakfast cookie. I don’t always want to make a whole batch and take all that time for many cookies. So I make a giant cookie just for me. That’s what Single-Serve Oatmeal Cookies are for! Fixing a morning cookie craving in under 15 minutes.
A single-serve cookie is a cookie recipe for one person. It’s cookie dough cooked quickly in the oven or air fryer to deliver a nice cookie in just a few minutes. It’s the perfect recipe for protein control and fixing your sweet tooth with nourishing ingredients.
Ingredients and Substitutions
Oatmeal banana lovers, this one-serve banana cookie recipe is for you! All you need to make this large soft oatmeal banana cookie recipe are 4 basic ingredients:
- Ripe Banana – The recipe contains no added sugar, so the riper, the sweeter the cookie will be. If you use greenish bananas, the cookies will be a bit bland. My preference is to go for yellow bananas with plenty of black spots. This makes a perfectly balanced cookie.
- Peanut Butter or almond butter. You can also use sunflower seed butter for a nut-free option, but it might turn the cookie a bit green.
- Rolled Oats or quick oats – it depends on the texture you prefer in cookies. Quick oats make the cookie softer, while rolled oats add more chew and texture.
- Protein Powder or oat flour – plant-based protein powder adds a great texture to the cookies. You can replace it with oat flour or almond flour. If you skip it, the cookie recipe still works, but it will be very soft, and better to eat on a plate.
Optional Add-on And Flavors
You can add any of the below ingredients to boost the cookie flavor and texture:
- Chocolate Chips – Add 1-2 tablespoons of dark chocolate chips and 1/4 teaspoon of vanilla extract.
- Oat Raisin Flavor – 1-2 tablespoons of dried raisins and 1/4 teaspoon of ground cinnamon.
- Nutty Oatmeal Cookie – 1 tablespoon of chopped walnuts or pecans.
- Coconut Cookie – 1-2 tablespoons of unsweetened coconut.
- Berry Oat Flavor – Fresh berries like raspberries or blueberries.
How To Make Single-Serve Oatmeal Cookies
It’s very easy to make single-serve oatmeal cookies for your breakfast. It’s a great swap to your favorite oatmeal recipe, and it doesn’t take long to make. Plus, it’s loaded with the same wholesome ingredients and nutrients.
- In a small bowl, mash the ripe banana with a fork until mushy.
- Stir in oats, protein powder, and any add-ons you like. For an oatmeal chocolate chip cookie, stir in 1 to 2 tablespoons of chocolate chips.
- Stir until it forms a dough ball that is wet and soft but can be gathered into a ball – not liquid.
- Line a baking sheet or the bottom of the air fryer basket with a piece of parchment paper.
- Slightly spray oil on the batter and press down the cookie dough ball into a large single-serve cookie.
- Then, sprinkle some extra chocolate chips on top if desired.
- Bake or air fry at 350°F (180°C) for about 15 minutes or until golden brown on the sides and crispy on the edges.
- Cool it down on a cooling rack for a few minutes to let it steam out.
Texture to Expect
This is a banana oatmeal cookie recipe with no sugar added and flourless. Therefore they are chewier and softer than regular oatmeal cookies.
For a crispier cookie texture, add 2 tablespoons of granulated sugar to the batter.
Storage Instructions
This cookie can be stored better in the fridge in an airtight container. You can store it for up to 2 days or freeze it for up to 3 months in zip-lock bags. You can rewarm the cookie the next day for a few minutes in the air fryer at 300°F (160°C).
Frequently Asked Questions
Yes, you can divide the batter into 6-10 small cookie dough balls. Roll each ball between your hands and press them down on a baking sheet covered with parchment paper, leaving half a thumb of space between each cookie. Bake them for 12-15 minutes or until golden brown on the sides.
If your bananas are not ripe enough, you can boost the sweetness of these cookies by adding 1-2 teaspoons of liquid sweetener, like maple syrup, or 1-2 tablespoons of granulated sweetener.
Yes, you can replace mashed banana with the same amount of homemade pumpkin puree, apple puree, or sweet potato puree.
You can remove the protein powder, but it also adds texture and dries out the cookie batter.
So to avoid a too soft cookie, replace the protein powder with the same amount of oat flour or 1/4 cup of almond flour.
More Oatmeal Cookie Recipes
I have plenty of oatmeal cookie recipes for you to try. I’ve listed below my favorite ones for you to try.
Did You Like This Recipe?
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Single-Serve Oatmeal Cookie
Ingredients
- ½ cup Quick Oats
- ⅓ cup Mashed Banana
- 1 teaspoon Peanut Butter (Unsalted)
- 2 tablespoons Protein Powder - or oat flour
Optional
- ¼ teaspoon Vanilla Extract
- ¼ teaspoon Cinnamon
- 1-2 tablespoons Coconut Sugar - or sugar
- 1-2 tablespoons Dairy-Free Dark Chocolate Chips - or berries
Instructions
- In a small bowl, use a fork and mash the ripe banana until smooth and mushy.
- Stir in quick oats, protein powder, and any additional ingredients like vanilla, cinnamon, or chocolate chips.
- Stir until the dough is coming together into a bowl. It should be wet but not liquid. Add more protein powder, 1 teaspoon at a time, to firm up the dough or more mashed banana (or 1-2 teaspoons of water) if too dry.
- Line a baking sheet or bottom of the air fryer basket with a piece of lightly oiled parchment paper.
- Press down the dough into a large 7-inch cookie (18 cm).
- Bake the cookie in an oven preheated to 350°F (180°C) or air fryer for 12 to 15 minutes or until the top and sides are golden brown.
- Cool down on a wire rack for 5 minutes to steam out. The cookie will be soft and chewy not crispy.
Storage
- Store in the fridge for up to 2 days in an airtight container or freeze up to 3 months and thaw at room temperature the day before.
This really hits the spot when you want something warm and comforting. I used cinnamon protein powder and added chocolate chips. Delicious! Looking forward to experimenting with different mix ins. Thank you!
I’m glad you liked it!!
Thanks for the great cookie recipe. This is a nice change from my baked oatmeal or overnight oats. I love anything oatmeal!
I added flaxseeds and hempseeds and turned out really good.
These sound like great additions!
Mmm lecker, nur das Haar auf dem Cookie finde ich nicht so lecker.
Grüße,
Jesse-Gabriel