Roll 250 g of finished puff pastry in one direction and cut 9 equal squares. Sprinkle the dough with sugar and fry in melted butter on both sides until golden color, cool on paper towels. To prepare the cream, beat with a hand mixer 500g mascarpone cheese, 2 jars of natural yoghurt, half a cup of powdered sugar and a little vanilla for baking. When the cakes and cream ready, proceed to the assembly of his «yarrow»: at the bottom of the form, place the cake and put on him a few halved strawberries, cream fill and cover the second Korzh. Collect the remaining layers in the same manner.