In a large bowl, stir butter and sugar until frothy. Work in the vanilla flavor. Sift the flour and starch into the bowl and stir to form a smooth batter.
Pour the mixture into a piping bag with a large star nozzle and squirt 32 dots onto the baking trays with plenty of space between them.
Bake in a preheated oven at 180 ° C for approx. 15-20 minutes until lightly golden brown. Take the biscuits out of the oven and let them cool on the baking sheets.