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Close-up of irresistible peanut butter brownie swirl cookies, a decadent treat.

Irresistible Peanut Butter Brownie Swirl Cookies: Decadent & Easy Recipe

Avatar photoAmelia Chen-Morrison
These fudgy, chewy cookies combine the best of brownies and peanut butter in one decadent swirl. Easy to make and packed with rich flavor, they’re a crowd favorite for any occasion.
Prep Time 20 minutes
Cook Time 10 minutes
Total Time 30 minutes
Course Dessert, Snack
Cuisine American
Servings 24 cookies
Calories 160 kcal

Equipment

  • Mixing Bowls
  • Whisk
  • Baking Sheet
  • Parchment paper
  • toothpick or knife
  • Measuring cups and spoons
  • Wire rack

Ingredients
  

  • ½ cup unsalted butter, melted
  • ¾ cup granulated sugar
  • ¼ cup light brown sugar, packed
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • ½ cup all-purpose flour
  • ¼ cup unsweetened cocoa powder
  • ¼ teaspoon baking powder
  • ¼ teaspoon salt
  • ¼ cup creamy peanut butter
  • 2 tablespoons powdered sugar
  • 1 tablespoon milk

Instructions
 

  • In a large bowl, whisk together melted butter, granulated sugar, and brown sugar until smooth.
  • Add eggs one at a time, beating after each. Stir in vanilla extract.
  • In a separate bowl, whisk flour, cocoa powder, baking powder, and salt. Stir dry ingredients into wet just until combined.
  • In a small bowl, mix peanut butter, powdered sugar, and milk until smooth.
  • Preheat oven to 350°F (175°C). Line baking sheet with parchment paper.
  • Scoop tablespoons of brownie dough onto sheet. Add small spoonfuls of peanut butter swirl on top.
  • Use a toothpick or knife to gently swirl the peanut butter into the brownie dough. Do not overmix.
  • Bake 8–10 minutes, until edges are set and centers are slightly soft.
  • Cool on baking sheet a few minutes, then transfer to wire rack to cool completely.

Notes

Chill the dough for thicker cookies. Add chocolate chips, nuts, or sea salt for variation. Natural peanut butter works but may need extra powdered sugar to thicken. Store at room temperature or freeze for longer freshness.
Keyword easy cookie recipe, peanut butter brownie cookies, swirl cookies