Heat oven to 375 . Remove wrappers from chocolate kisses.
Beat shortening and peanut butter in large bowl until well blended. Add 1/3 cup granulated sugar and brown sugar; beat until fluffy. Add egg, milk, and vanilla; beat well. Stir together flour, baking soda, and salt; gradually beat into peanut butter mixture.
Shape dough into 1" balls. Roll in granulated sugar and place on ungreased cookie sheet.
Bake 8-10 minute o until lightly browned. Immediately press chocolate kiss into center of each cookie. Remove cookie from cookie sheet to wire rack. Cool completely.