Preheat the oven to 375 F.

Remove all wrappers from the chocolates, and line two cookie sheets with parchment or silicone liners; set aside.

In a large bowl, cream together the shortening and peanut butter until creamy and well-blended. Add in the white and brown sugars and beat until fluffy. Add in the egg, milk, and vanilla, and beat until incorporated. Add in the flour, salt, and baking soda, and mix until dough comes together.

Pour additional white sugar into a small bowl. Shape dough into 1-inch balls, roll in the prepared sugar, and place on the prepared cookie sheet.

Bake cookies 8-10 minutes until lightly browned, then remove from oven and immediately place a Kiss in the center of each cookie. Cookies should crack!

Transfer cookies to a wire rack to cool, and enjoy!