Preheat oven to 325 degrees.
Cream together sugars, shortening, egg, vanilla, and salt in a large bowl.
Add the the flour and baking powder. Add 1 tablespoon of water and continue mixing until dough forms a ball.
Roll dough into 3/4-inch balls and flatten slightly onto a lightly greased cookie sheet. Bake for 15-18 minutes or until cookies are light brown.
Makes 50-56 cookies.