INGREDIENTS
2 cups
all-purpose flour
6
ground Biscoff cookies (yields a shy ½ cup)
2 1/4 tsp
baking powder
1/2 tsp
salt
3/4 cup
unsalted butter (room temperature)
1 cup
granulated sugar
1/2 cup
packed dark brown sugar
2
extra large eggs (room temperature)
1 tsp
pure vanilla extract
3/4 cup
buttermilk (room temperature)
6
Biscoff cookies (crumbled)
3/4 cup
cookie butter
5
extra large egg whites
1 1/4 cups
granulated sugar
1/2 tsp
salt
3/4 lb
unsalted butter (room temperature*)
1/2 cup
cookie butter