Strassburgare

Step 1
Preheat oven to 325 degrees F (165 degrees C).

Step 2
With an electric mixer, beat the butter and confectioners' sugar together in a bowl until smooth and creamy; beat in the vanilla sugar.

Step 3
In a separate bowl, whisk the flour with potato flour.

Step 4
Stir the flour mixture into the butter mixture, about 1/4 cup at a time, until all the flour is mixed in.

Step 5
Stir in the food coloring until the dough is evenly colored.

Step 6
Place the dough into a cookie press fitted with a decorative tip.

Step 7
Press out 1 1/2-inch cookies onto an ungreased baking sheet.

Step 8
Bake cookies in the preheated oven until the bottoms are just lightly browned, about 10 minutes. Allow to cool on the baking sheet for about 5 minutes before removing to finish cooling on wire racks.