01 -
Beat butter and sugar until fluffy, about 4 minutes. Mix in yolks, vanilla, and salt.
02 -
Divide mixture in half. Add 1 1/4 cups flour to one half for vanilla dough.
03 -
Mix 1 cup flour and cocoa powder into other half.
04 -
Roll tiny balls from each dough. Arrange 3 vanilla and 3 chocolate balls in flower pattern.
05 -
Press balls together gently and roll into swirls. Flatten slightly.
06 -
Chill 30 minutes. Bake at 325°F for 13-15 minutes until edges turn golden.