Preheat oven to 375 degrees F. Line a baking sheet with parchment paper.

Scoop cookie butter: Line a plate or second small baking sheet with a small piece of parchment paper. Measure out 1 cup of cookie butter to use in cookie dough and set aside. With remaining 1/2 cup cookie butter, scoop 24 small scoops (about 1 teaspoon size) onto parchment paper and place in the freezer while you make the cookie dough.

Wet ingredients: In the bowl of a stand mixer, add butter, white sugar, and brown sugar then mix for 1 minute. Add 1 cup cookie butter and mix for 2-3 more minutes, until light colored and fluffy. Add eggs, egg yolk, and vanilla then mix until well combined.

Dry Ingredients: Add flour, baking soda, baking powder and salt then mix to combine. Stir in 1 1/2 cups white chocolate chips.

Scoop dough into 24 balls, about 3 Tablespoon-size, or 70 grams, if you want to measure with a scale.

Fill: Remove cookie butter scoops from freezer. Press a deep indention into the center of a cookie dough ball and add one of the cold balls of cookie butter. Seal to close, and roll back into a ball. Top each cookie dough ball with a few extra white chocolate chips.

Refrigerate: Place dough balls on a large plate and refrigerate, covered, for 30 minutes before baking.

Bake cookies on prepared baking sheet, 1’’ apart (I fit 12 to a baker’s half sheet pan) for 12-15 minutes, or until the cookies are no longer shiny on top. Don’t over-bake.

Decorate: Allow cookies to cool on baking sheet for at least 15 minutes before removing to a wire cooling rack. Melt vanilla melting wafers in microwave according to package instructions and drizzle over cookies. Top with biscoff cookie crumbs.