HEAT oven to 375°F. Cream together shortening, peanut butter, brown sugar and 1/2 cup sugar. Add egg, milk and vanilla. Beat well
STIR together flour, baking soda and salt. Add to creamed mixture. Beat on low speed until stiff dough forms.
SHAPE into 1-inch balls. Roll in sugar. Place 2 inches apart on ungreased cookie sheet.
BAKE 10 to 12 minutes or until golden brown.