Beat eggs until frothy
Cream 10 min with powdered sugar and butter
Add anise oil
Sift together baking powder, flour, and salt
Add 1 c. more flour or more according to size of eggs
Roll ½ inch thick, use Springerlee roller to imprint
Place on rimmed baking sheets and cover with tea towels overnight
Bake at 325°F for 15-17 min per pan