Cookies for tea: Crumbly and very, from simple products. Cooking is easy and simple.

Recipe
Flour - 400 gr
Butter - 200 gr
Potato starch - 80 gr
Powdered sugar - 70 gr
Vanilla sugar - 1 tsp
Baking powder - 1 tsp
A pinch of salt
Egg - 1 pc
Kefir - 80 gr
Filling
Apples - 4 pcs
Sugar - 70 gr
Vanilla sugar - 1 tsp
Cinnamon - 0.5 tsp
Bake at 190 degrees for 20 minutes