Follow these simple steps to create your delightful Biscoff Cake:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour two 8-inch round cake pans.

2. Mix Dry Ingredients: In a medium bowl, whisk together flour, baking powder, baking soda, and salt.

3. Cream Butter and Sugars: In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.

4. Add Eggs and Vanilla: Beat in the eggs one at a time, followed by the vanilla extract, mixing well after each addition.

5. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, alternating with buttermilk, beginning and ending with the dry ingredients. Mix until just combined.

6. Incorporate Biscoff Cookies: Gently fold in the crushed Biscoff cookies to the batter, ensuring an even distribution.

7. Pour Batter: Divide the batter evenly between the two prepared cake pans.

8. Bake: Place the pans in the preheated oven and bake for 30-35 minutes or until a toothpick inserted in the center comes out clean.

9. Cool the Cakes: Once baked, remove the cakes from the oven and let them cool in the pans for about 20-25 minutes. Then, turn them out onto wire racks to cool completely.

10. Prepare the Frosting: In a mixing bowl, whip the heavy cream until soft peaks form. Fold in the Biscoff spread until fully combined.

11. Frost the Cake: To assemble, lay one cake layer on a serving platter. Spread a generous amount of the Biscoff frosting on top. Place the second layer on top and frost the top and sides of the cake.

12. Decorate: Optionally, sprinkle crushed Biscoff cookies over the top for a lovely finishing touch.