1. Heat oven to 375°F.
2. Beat shortening, peanut butter, brown sugar, milk and vanilla in large bowl until well blended. Add egg; beat just until blended. Combine flour, baking soda and salt; gradually beat into peanut butter mixture. Stir in 1 cup bits; reserve remainder for topping.
3. Drop by heaping teaspoons about 2 inches apart onto ungreased cookie sheet; top each with reserved bits.
4. Bake 7 to 8 minutes or until set. Do not overbake. Cool 2 minutes. Remove to wire rack. Cool completely. Makes about 36 cookies.