Corn starch	100 g
Cake flour	100 g
Salt-free butter	100 g
Powdered sugar	40 g
Salt	1 g
Cooked egg yolk	2

1. Butter, softened at room temperature, eggs cooked spare.
   
2. Soften butter + sugar with whisk sent.
   
3. Peel boiled eggs shell, carefully remove the yolks. Spoon crushed egg yolk into a small sieve, and sieve out bits of egg yolk chip.
   
4. Sift together the cake flour and corn starch, and pass the butter mix until no dry powder.
   
5. Hand knead into dough in the insurance policy, according to flat in the fridge for 1 hour.
   
6. Remove from refrigerator dough to keep good, 60 g/roll into small balls, into the baking dish, by small pits with your index finger. Preheat oven to 170 degrees, in the middle and bake about 15 minutes.