Whip egg whites on medium-high speed for 3-5 minutes until stiff peaks form. Gradually sprinkle in sugar and vanilla sugar while beating.
Gently fold quark and bitter almond aroma into the egg white mixture using a spatula until combined.
Fold desiccated coconut into the mixture until evenly distributed.
Transfer mixture to a piping bag fitted with a star nozzle and pipe onto round wafers, or use 2 teaspoons to place dollops on wafers, yielding approximately 50 pieces.
Preheat oven to 210°C (410°F) for conventional heat or 190°C (375°F) for a fan oven.
Bake for 10-15 minutes until macaroons are lightly golden around the edges.