Heat oven to 375°F. Remove the wrappers from Hershey’s Kisses chocolates.

In a medium bowl, whisk together flour, baking soda and salt; set aside.

In a large bowl, beat together the shortening and peanut butter until blended. Add 1/3 cup of granulated sugar and the brown sugar; beat until fluffy. Add the egg, milk and vanilla; beat well. Gradually beat in the dry ingredients.

Shape dough into 1-inch balls. Roll in the remaining ⅓ cup granulated sugar, then place on an ungreased cookie sheet.

Bake cookies 8 to 10 minutes or until lightly browned. Immediately press a Hershey’s Kiss into the center of each cookie. The cookie will crack around the edges.

Immediately (and gently) remove from the cookie sheet and onto a wire rack. Cool completely. Cooling will take some time (at least one hour) as the Hershey's Kisses will be very soft.