In a small bowl combine flour, baking soda, and salt.

In a larger mixing bowl blend shortening, peanut butter, sugars, egg, milk, and vanilla. Mix until well blended and smooth.

Add flour mixture and blend well.

Roll pieces of dough into balls. Roll each ball in sugar and place on a baking sheet. Bake at 375º for 8 minutes.

When cookies come out of the oven, press a chocolate kiss into the center of each one. Cool on the pan for 5 minutes then move to a wire rack to cool completely.