Preheat oven at 500º F. Mix soft butter
with the sugar with wooden spoon until well-blended. Add the flour
and lastly stir in the egg whites.
Grease the cookie sheets and form very thin 6 inch circles with
Bake at 250º C for 3 minutes.
Remove from the oven and place each crepe, while hot and soft
immediately get on the botton of a muffin mold turned upsidedown.
Immediately cover with muffin mold to form the tulip.