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A tray of soft peanut butter banana cookies with fresh banana slices, a bowl of peanut butter, and chocolate chips.

Chewy Peanut Butter Banana Cookies

These delightful Chewy Peanut Butter Banana Cookies are soft, moist, and packed with the comforting flavors of ripe bananas and creamy peanut butter, making them a perfect treat for any time of day.
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Prep Time 15 minutes
Cook Time 12 minutes
Total Time 27 minutes
Servings: 24 cookies
Course: Dessert, Snack
Cuisine: American
Calories: 180
Ingredients Equipment Method Notes

Ingredients
  

Dry Ingredients
  • 2 cups all-purpose flour
  • 1 tsp baking soda
  • 1/2 tsp salt
Wet Ingredients
  • 1/2 cup unsalted butter 1 stick, room temperature
  • 1/2 cup granulated sugar
  • 1/2 cup light brown sugar packed
  • 1 large egg room temperature
  • 1 tsp vanilla extract
  • 1 cup creamy peanut butter
  • 1/2 cup mashed ripe banana about 1 medium banana

Equipment

  • Large mixing bowl
  • Electric mixer (stand or hand-held)
  • Rubber spatula
  • Baking sheets
  • Parchment paper
  • Small Bowl
  • Wire rack
  • Measuring cups and spoons

Method
 

Prepare Dry Ingredients
  1. In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
Cream Butter and Sugars
  1. In a large mixing bowl, using an electric mixer, cream together the room temperature butter, granulated sugar, and light brown sugar on medium speed until light and fluffy, about 2-3 minutes.
Add Wet Ingredients
  1. Beat in the egg and vanilla extract until well combined. Scrape down the sides of the bowl as needed. Add the creamy peanut butter and mashed ripe banana, mixing on low speed until just incorporated.
Combine Wet and Dry
  1. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix; overmixing can result in tough cookies.
Chill Dough (Optional but Recommended)
  1. Cover the bowl with plastic wrap and chill the cookie dough in the refrigerator for at least 30 minutes. This helps prevent the cookies from spreading too much.
Preheat Oven and Prep Baking Sheets
  1. Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper.
Scoop Dough
  1. Drop rounded tablespoons of cookie dough onto the prepared baking sheets, about 2 inches apart.
Bake
  1. Bake for 10-12 minutes, or until the edges are lightly golden and the centers are just set. The cookies may still look slightly underdone in the middle, but they will firm up as they cool.
Cool
  1. Remove the baking sheets from the oven and let the cookies cool on the sheets for 5 minutes before transferring them to a wire rack to cool completely.

Notes

For an extra crunch, you can add 1/2 cup of chopped peanuts or chocolate chips to the dough in the last step of mixing. Store leftover cookies in an airtight container at room temperature for up to 3-4 days. Ensure your banana is very ripe (brown spots are good!) for the best flavor and moisture.