In a medium bowl, cream together the butter and sugar until smooth. Beat in the egg and vanilla. Combine the flour, baking powder, and salt; stir into the creamed mixture.
Roll dough into 1 inch balls, and place them 2 inches apart on ungreased cookie sheets.
Bake for 8 to 10 minutes in the preheated oven, until the edges are golden.
Let cookies cool for 1 minute on the cookie sheet before transferring to a wire rack to cool completely.
Interesting Facts
These Italian cookies are a variation of the traditional Italian cookie, biscotti.
These cookies can be stored in an airtight container for up to one week.
These cookies can be decorated with chocolate chips, sprinkles, or colored sugars.