Vanilla Bean Biscotti

(Taken from Better Homes and Gardens)

Ingredients:
1 Vanilla bean, split lengthwise, or
2 tsp vanilla extract
2 3/4c all-purpose flour
1 1/2c sugar
1 tsp salt
1 1/2 tsp baking powder

2 eggs
2 egg yolks
6 Tbs melted butter

Directions:
1. If using a vanilla bean, scrape seeds from pod; discard pod.
2. Preheat oven to 325 degrees. Lightly grease two of your largest cookie sheets; set aside. In a large bowl combine flour, sugar, baking powder, and salt. Make a well in the center of flour and stir eggs into flour mixture. Add melted butter and vanilla seeds or extract; stir until dough starts to form a ball.
3. Divide dough into three portions. On a lightly floured surface, shape each portion into a 14" loaf. Place loaves 3" apart on the prepared cookie sheets (make sure you give them enough space because they spread while baking); flatten slightly until about 1 1/2" wide.
4. Bake in preheated oven on two racks for 25 to 30 mins or until firm and lightly browned, switching pan positions halfway through baking. Cool on cookie sheets 15 mins (make sure you give them time to cool or they will crumble).
5. Using a serrated knife, cut loaves diagonally into 1/2" slices. Place slices on cookie sheets cut sides down.
6. Bake for 10 minutes. Turn sides over and bake 10 to 15 more or until crisp and dry.