Beat with a mixer at low speed at room temperature oil, with icing sugar. Add starch and vanilla sugar, also beat. Add flour, beat the dough with a mixer, until smooth. Scoop the dough into a lump. 1 tsp roll the dough into a ball with your hands, put on parchment and bake in a preheated oven to 180 degrees, until browned. Cool the finished cookies. Melt the icing, with the help of a pastry brush we apply icing on the cookies, sprinkle with powder. Let the glaze dry and you can pack the cookies in boxes. Have a nice tea party!