- Mix flour, sugar, baking powder and salt together. 
- Cut in butter until mixture resembles coarse crumbs. 
- Add in buttermilk,vanilla eggs and Biscoff, mix then turn out on floured surface and knead until all combined. 
- Cut with floured cookie cutter. 
- Bake on parchment lined baking sheet at 400 degrees for 10 minutes or until golden.