Preheat oven to 350°F.
In a mixer bowl beat shortening and peanut butter on medium speed for 30 seconds.
Add 1/2 cup granulated sugar, brown sugar, baking powder and baking soda to the mixer bowl. Beat until combined. Blend in egg, milk and vanilla until combined. Add the flour in batches until mixed well.
Scoop dough with 1-inch cookie scoop to form balls. Roll balls in the remaining 1/4 cup granulated sugar. Place dough balls 2 inches apart on a cookie sheet. I like to place parchment paper on the cookie sheet or a silicone baking mat to keep the cookies from sticking.
Bake for 10 to 12 minutes until they are light brown on the edges. Immediately press chocolate Kiss into the center of each cookie. Transfer to a cooling rack.