Steps to make the cake:
Pre-heat your oven to 325 degrees.
Using a hand or stand mixer, beat the butter and sugars together on medium speed until light and fluffy (approximately 5 minutes).
Add the cream cheese and mix, then add the cookie butter and mix just until combined.
Add the eggs to the batter one at a time, blending until combined after each addition.
Next, add the vanilla extract. Mix in the flour 1 c at a time, just until combined.
Lastly, fold the crumbled cookies into the batter. Pour your batter into a 12-cup bundt pan sprayed with baking spray or similar.
Place the cake in your preheated oven and bake for an hour to an hour and half at 325 degrees. The cake is done when the toothpick comes out clean/with moist crumbs.
Steps to make the topping:
Heat the cookie butter in a microwave-safe dish for 30 - 45 seconds.
Pour the cookie butter over the cake as you desire.
Sprinkle the crushed Biscoff cookies over the cake as desired.
Allow the icing to set, then serve and enjoy!