The Best Oatmeal Raisin Banana Cookies

Introduction

You get the ultimate comfort cookie in these soft, chewy Oatmeal Raisin Banana Cookies. Browning the butter adds a deep, nutty richness that pairs perfectly with the sweet banana and warm cinnamon. They’re the perfect way to use up those ripe bananas sitting on your counter.

This recipe and accompanying image were created with the help of AI for inspiration and guidance. Results may vary depending on ingredients, equipment, and technique.

Prep & Cook Time

Prep Time: 30 minutes
Cook Time: 60 minutes
Total Time: 1 hour 30 minutes
Servings: 24 cookies

Ingredients

½ cup butter ({browned & cooled})
½ cup brown sugar ({packed})
½ cup granulated sugar
1 large egg
1 teaspoon vanilla extract
2 ripe bananas ({mashed})
2 cups all purpose flour
1 cup rolled oats
½ teaspoon salt
1 teaspoon baking soda
½ teaspoon cinnamon
½ cup raisins

Instructions

First, prepare your browned butter. Melt the butter in a light-colored skillet or saucepan over medium heat. Swirl the pan frequently until the butter foams, turns golden brown, and gives off a nutty aroma. Immediately pour it into a heatproof bowl and let it cool completely to room temperature.
Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper.
In a large mixing bowl, combine the cooled brown butter, packed brown sugar, and granulated sugar. Beat with a mixer or whisk until well combined.
Add the egg and vanilla extract to the sugar mixture and beat until smooth. Then, mix in the mashed bananas until fully incorporated.
In a separate bowl, whisk together the all-purpose flour, rolled oats, salt, baking soda, and cinnamon.
Gradually add the dry flour and oat mixture to the wet banana mixture, mixing just until no dry streaks remain. Be careful not to overmix.
Gently fold in the raisins.
Using a cookie scoop or a spoon, drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart.
Bake for 10-12 minutes, or until the edges are lightly golden and the centers look set. The cookies will be soft.
Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.

Variations

Ice Cream Sandwich: Let cookies cool completely, then sandwich a scoop of vanilla ice cream between two for a decadent treat.
Chill the Dough: For a slightly thicker cookie, cover and chill the dough for 1 hour before scooping and baking.
Flatten Slightly: Before baking, gently press down each dough ball with the bottom of a glass to control the spread and shape.
Cookie Skillet: Press all the dough into a greased cast iron skillet and bake for 20-25 minutes for a giant, shareable cookie.

Tips for Success

Ensure your browned butter is completely cooled before adding the sugars; otherwise, it could melt the sugars and affect the cookie’s texture.
Use very ripe, spotty bananas for the most intense banana flavor and natural sweetness.
Don’t skip the whisking step for the dry ingredients—it evenly distributes the baking soda and cinnamon for a consistent rise and flavor.
If your raisins are very dry, you can plump them up by soaking in warm water for 10 minutes, then thoroughly patting them dry before folding in.

Storage & Reheating

Store cooled cookies in an airtight container at room temperature for up to 4 days. For longer storage, freeze the baked cookies for up to 3 months. To reheat, warm individual cookies in the microwave for 10-15 seconds or in a 300°F oven for 5 minutes.

FAQ

Can I use regular melted butter instead of browning it?

Yes, you can, but browning the butter adds a significant depth of nutty flavor that makes these cookies special.

My dough seems too wet. Did I do something wrong?

This is a softer dough due to the bananas. Ensure you’ve measured your flour correctly (spooned and leveled, not scooped) and let the browned butter cool fully. Chilling the dough before baking can also help.

Can I use quick oats instead of rolled oats?

Yes, quick oats can be used and will result in a slightly less chewy, more uniform texture.

Why are my cookies flat?

This is often caused by the butter being too warm when mixed. Make sure your browned butter is cooled to room temperature. Also, check that your baking soda is fresh.

Can I make these cookies ahead of time?

Absolutely. You can prepare the dough, scoop it onto a baking sheet, and freeze the dough balls. Once solid, transfer to a freezer bag. Bake from frozen, adding 1-2 minutes to the bake time.

Can I omit the raisins?

Yes, you can simply leave them out. The cookies will still be delicious, or you could substitute with an equal amount of a different mix-in from the “no new ingredients” rule, like a few extra oats for texture.