The dough for these cookies feels softer and stickier than a standard chocolate chip cookie dough, which makes sense once the mashed banana goes in. Banana Bread Chocolate Chip Cookies bring that familiar banana-bread flavor into a cookie with chocolate chips in every bite, and the dough gets a full chill before baking so it’s easier to portion.
I use just an egg yolk rather than a whole egg, keeping extra moisture out of an already banana-rich dough. The banana should be ripe and mashed smooth, but it still needs to be measured carefully; adding more because the last bit is sitting in the bowl can change how the cookies bake. A little cinnamon rounds out the banana, while semisweet chocolate keeps each bite from leaning too sweet.
Kitchen Note
Rotate the pans front to back and switch their rack positions halfway through baking. That small adjustment helps both sheets brown more evenly when they’re in the oven together.
Save these Banana Bread Chocolate Chip Cookies for soft banana flavor, warm cinnamon, and semisweet chocolate in every bite.
Why Extra Banana Can Turn These Cookies Cakey
Banana brings both flavor and moisture, so a casual extra scoop has a bigger effect here than it would in a plain chocolate chip cookie. The dough can look thick and still hold more moisture than it needs. Keep the mashed banana measurement level, and don’t add extra just to use up the last smear in the bowl. That balance lets the flour form a dough that can be scooped after chilling instead of baking up with a soft, cake-like texture.
Ripe banana is useful for its sweetness and soft texture, but ripeness doesn’t mean the amount is flexible. Mash it well before measuring so you don’t end up with a pocket of larger banana pieces in one portion and mostly dough in another. Then stop mixing the flour in as soon as no dry streaks remain. Overworking the dough won’t solve excess moisture; it can make the cookies less tender. The hour in the refrigerator gives the dough time to firm up before it goes onto the pans.
Think of the banana as the ingredient that sets the dough’s moisture level, not just a flavor add-in. Keeping that part consistent is the best way to get a batch of cookies that bakes evenly from one sheet to the next.
What the Banana and Egg Yolk Change in a Chocolate Chip Cookie
- Ripe banana — It gives these cookies their banana-bread character and adds moisture. Choose a banana soft enough to mash easily; a firm, barely ripe one is harder to mash smoothly and tastes less sweet. Mash before measuring so the amount stays consistent.
- Egg yolk — The yolk helps bind the dough and adds richness without the extra moisture of an egg white. Use a large egg yolk as written; a whole egg changes the liquid balance.
- Softened unsalted butter — Soft butter creams smoothly with the sugars, so it should yield when pressed but shouldn’t be melted. Unsalted butter keeps the salt level controlled. A good-quality butter adds a fuller dairy flavor, though standard grocery-store butter works well here.
- Light brown and granulated sugars — Packed brown sugar brings moisture and a mellow molasses note, while granulated sugar balances it and helps the cookies bake with defined edges. Pack the brown sugar into the measuring cup rather than scooping it loosely.
- All-purpose flour — Flour gives the banana-heavy dough enough structure to hold its shape. Stir the dry mixture into the wet ingredients only until the streaks disappear; a few extra turns aren’t helpful once the flour is incorporated.
- Baking soda and cinnamon — Baking soda provides lift, and cinnamon makes the banana read more like banana bread. Use fresh baking soda for reliable lift, and ground cinnamon that still smells fragrant.
- Semisweet chocolate chips — Their bittersweet edge balances the ripe banana and brown sugar. A fresh bag from the pantry is fine; there’s no need to seek out specialty chips for this dough.
- Vanilla extract — It rounds out the banana and chocolate without taking over. Pure vanilla is lovely, but the standard vanilla extract you already use for baking works.
From Creamed Butter to Evenly Baked Cookies
Cream the Butter and Sugars Until Smooth
Heat the oven to 350°F and line two 18×13-inch rimmed baking sheets with parchment paper. Beat the softened butter with both sugars in a large bowl for about 2 minutes, stopping when the mixture looks creamy rather than dry and crumbly. Butter that’s too cold won’t blend smoothly, while melted butter won’t cream the same way. Add the egg yolk, mashed banana, and vanilla, then beat just until they’re combined.
Mix the Dry Ingredients Without Overworking
Whisk the flour, baking soda, salt, and cinnamon together in a medium bowl so the leavener and spice are distributed through the flour. Stir this mixture into the banana mixture just until no dry streaks remain. If you keep mixing after the flour disappears, the cookies can turn less tender. Fold in the semisweet chocolate chips last, spreading them through the dough without beating them in.
Chill Before Portioning
Cover the bowl and chill the dough for 1 hour. The dough will be firmer and easier to scoop after its rest, which matters with a banana-based dough that starts out soft. Scoop portions of 1 1/2 tablespoons onto the prepared sheets, leaving about 2 inches between them so the cookies have room to bake. Divide the dough between the pans rather than crowding all the portions onto one sheet.
Bake for Set Edges, Then Let the Pans Finish the Job
Bake for 10 to 13 minutes, switching the sheets’ rack positions and rotating them front to back halfway through. Look for edges that are set and lightly browned; the centers can still look soft when the cookies come out. Let them rest on the baking sheets for 5 minutes, then transfer them to a wire rack to cool. Moving them before that short rest can make them difficult to handle while they’re still delicate.
Simple Changes for a Different Batch
Make the Cookies Dairy-Free
Replace the softened unsalted butter with the same amount of dairy-free baking butter, choosing a stick-style product made for baking rather than a soft tub spread. The cookies will still have banana and chocolate flavor, though the buttery taste will be different and the final texture may vary a little by brand.
Leave Out the Cinnamon
Omit the ground cinnamon if you want the banana and chocolate to stand out on their own. The dough still has its banana-bread base, but the cookies lose that warm spice note. Keep the rest of the ingredients and method unchanged.
Bake a Banana-Forward Batch
Leave out the semisweet chocolate chips for a plain banana-and-cinnamon cookie. The texture stays tender, but the finished cookies taste less bittersweet and more directly of banana. Keep the dough portions and baking method the same.
Storage and Reheating
- Refrigerator: Store cooled cookies in an airtight container for up to 5 days. They’ll firm up when cold, so let them come to room temperature before serving.
- Freezer: Freeze cooled cookies in an airtight container for up to 2 months, separating layers with parchment. Thaw at room temperature while still covered to keep them from drying out.
- Reheating: These cookies don’t need reheating; bring them to room temperature for a softer bite. Microwaving for too long can make them tough as they cool.
Questions That Come Up While Baking These Banana Cookies
Banana Bread Chocolate Chip Cookies
Ingredients
Equipment
Method
- Heat the oven to 350°F.
- Line two 18x13-inch rimmed baking sheets with parchment paper.
- In a large bowl, beat the butter, brown sugar, and granulated sugar until creamy, about 2 minutes.
- Beat in the egg yolk, mashed banana, and vanilla until combined.
- In a medium bowl, whisk together the flour, baking soda, salt, and cinnamon.
- Stir the dry ingredients into the banana mixture just until no dry streaks remain.
- Fold in the chocolate chips.
- Cover and chill the dough for 1 hour.
- Scoop the dough into 1 1/2-tablespoon portions onto the prepared baking sheets, spacing them about 2 inches apart.
- Bake for 10 to 13 minutes, switching the sheets’ rack positions and rotating them front to back halfway through, until the edges are set and lightly browned.
- Let the cookies rest on the baking sheets for 5 minutes.
- Transfer the cookies to a wire rack to cool.
