Preheat oven to 350 degrees.
In a large bowl combine the crisco, sugar, milk and vanilla. Beat on medium speed of an electric mixer until blended. Beat in the egg.
In a small bowl combine flour, baking powder, and salt. Add to the creamed mixture on low speed until well mixed.
Wrap in plastic wrap and refrigerate for at least a few hours.
When you are ready to make the cookies, roll out the dough on a floured board and cut into shapes. Maybe about 1/8 - 1/4" thick. Place on ungreased cookie sheet and bake for 7-8 minutes or until edges are slightly brown. Remove immediately to wire cooling rack.