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Ultimate Biscoff Brownies

Olivia taling
These Ultimate Biscoff Brownies are rich, fudgy, and irresistibly decadent, featuring a buttery Biscoff cookie crust and a creamy cookie butter swirl. Perfect for parties, gifting, or anytime chocolate and Biscoff cravings strike.
Prep Time 15 minutes
Cook Time 22 minutes
Total Time 1 hour 37 minutes
Course Dessert
Cuisine American
Servings 16 brownies
Calories 315 kcal

Equipment

  • 8-inch square baking pan
  • Mixing bowls
  • hand or stand mixer
  • rubber spatula
  • parchment paper

Ingredients
  

  • 1.5 cups Biscoff cookies, crushed into fine crumbs
  • 0.25 cup salted butter, melted and cooled (for crust)
  • 2 large eggs, room temperature
  • 0.5 cup granulated sugar
  • 0.5 cup light brown sugar, packed
  • 0.5 cup salted butter, melted and cooled
  • 2 tsp vanilla extract or vanilla bean paste
  • 0.5 cup all-purpose flour
  • 0.33 cup unsweetened cocoa powder
  • 0.25 tsp baking powder
  • 0.33 cup smooth Biscoff cookie butter

Instructions
 

  • Preheat the oven to 350°F (175°C) and line an 8-inch square baking pan with parchment paper.
  • Mix the crushed Biscoff cookies with melted butter and press evenly into the bottom of the prepared pan.
  • In a large bowl, beat the eggs, granulated sugar, and brown sugar until light and creamy.
  • Add the melted butter and vanilla extract and mix until fully incorporated.
  • Sift together flour, cocoa powder, and baking powder. Fold gently into the wet mixture until smooth.
  • Pour the brownie batter over the prepared crust and spread evenly.
  • Warm the Biscoff spread briefly, spoon over the batter, and swirl gently with a knife.
  • Bake for 22–25 minutes until a toothpick inserted comes out mostly clean. Cool completely before slicing.

Notes

For clean slices, chill brownies before cutting and use a warm, dry knife. Slightly heat the Biscoff spread before swirling for the best marbled effect.
Keyword biscoff brownies, biscoff dessert, cookie butter brownies, fudgy brownies