Preheat oven to 350°. Spray and flour a cookie sheet; set aside. Cream eggs, yolk, sugar and butter. Mix in anise and baking powder. Add flour and mix well. Dough will be sticky. Flour hands and make 2 long loaves on the prepared cookie sheet. Cook for 18 minutes, or until a toothpick comes out clean. Remove from oven and set oven to 450°. Cut the loaves into slices and return to oven for to 5 minutes, or until toasted brown.