Preheat your oven to 350°F. Grease and line three 8-inch springform cake pans. Set them aside.
In a large bowl, combine all the dry ingredients. Mix well. Add the remaining ingredients and stir until you get a smooth batter.
Divide the batter evenly among the cake pans. Bake for 25-27 minutes, until a skewer inserted in the center comes out mostly clean.
Take the cakes out of the oven and let them cool completely before frosting.
For the frosting, beat the butter until it’s fluffy. Add the Biscoff spread and powdered sugar, then beat until smooth.
To assemble, place the first cake on a flat surface and spread 1/4 of the frosting over the top. Add the second layer and spread another 1/4 of the frosting on it. Place the third cake layer on top and use the remaining frosting for the top and sides of the cake.