Anise Walnut Biscotti

Step 1
Preheat oven to 375 degrees F ( 190 degrees C ).

Step 2
In a large bowl, cream together butter and sugar Gradually add the vanilla and eggs while mixing. Sift together the flour and baking powder; stir into the egg mixture. For plain biscotti, do not add anything else . Stir in the anise extract and anise seed. Add walnuts if desired.

Step 3
Wet or grease your hands and shape dough out into 4 logs as long as your baking sheet will allow. Pat each one to about 3/4 inch in height, and 3 inches wide. Brush with beaten egg yolks.

Step 4
Bake in the preheated oven for 15 minutes, until golden brown. Slice logs at an angle, cutting pieces into 1/2 to 3/4-inch wide cookies. Place slices back onto the cookie sheet, standing upright, if possible; leave a gap between the slices. Return to the oven and bake until cookies are dry and lightly toasted, about 10 minutes more.