Start by pre heating your oven to 350°F and lining a 8x8 baking tray with parchment paper and set aside.
In a bowl add your finely crushed 22 Biscoff cookies and 1/4 cup melted butter. Mix this until it reaches the consistency of wet sand and then place in your baking tray and flatten out the crust.
22 Biscoff Cookies, 1/4 cup salted butter
For your brownies, combine your eggs, brown sugar, white sugar and melted butter in a large bowl and mix this until it's smooth.
2 eggs, 1/2 cup sugar, 1/2 cup sugar, 1/2 cup butter, 2 tsp vanilla
To your brownie mixture add in your salt, baking powder, cocoa powder and flour and mix until you have a smooth batter.
1/3 cup baking cocoa, 1/4 tsp baking powder, 1/4 tep salt, 1/2 cup flour
Add this batter to your prepared Biscoff crust and top with your melted Cookie Butter.
Using a toothpick make a marble patter on the top of your brownies and bake in the oven at 350°F for 25 minutes,
1/3 cup Biscoff Cookie Butter
Let cool for 2 hours then enjoy!