500 g all-purpose flour (about 4 cups)
1 packet baking powder (1.5 tsp)
200 g mashed potatoes (about 1 cup)
120 g fat (such as butter or shortening, about ½ cup)
180 g sugar (about ¾ cup)
1 packet vanilla sugar (1.5 tsp)
1 egg.
Mix the flour with the baking powder, then knead well with the mashed potatoes, fat, sugar, vanilla sugar, and egg.
Roll the dough out to a thickness of 0.5 cm (about ¼ inch) and cut out cookies using various shapes.
Bake at 180 degrees Celsius (about 350 degrees Fahrenheit) for 10-15 minutes on a greased baking sheet or one lined with parchment paper.
Once baked, roll the cookies in vanilla sugar.