Mom's Peanut Butter Blossom Cookies

Step 1
Preheat oven to 375 degrees F (190 degrees C).

Step 2
Beat peanut butter and shortening together in a bowl using an electric mixer until smooth and creamy; add white sugar and brown sugar and beat until fluffy. Add egg, milk, and vanilla extract to creamed mixture and beat until smooth.

Step 3
Mix flour, baking soda, and salt together in a separate bowl; gradually beat into the creamed mixture until dough is just mixed. Shape dough into 1-inch balls and arrange on a baking sheet.

Step 4
Bake in the preheated oven until cookies are lightly browned, 8 to 10 minutes. Immediately press a chocolate kiss into the center of each cookie. Transfer cookies to a wire rack to cool.