Heat oven to 375 degrees F.
Beat together sugar, brown sugar, shortening and peanut butter until blended. Add eggs, milk and vanilla. Beat well. Stir together flour, baking soda and salt. Add to peanut butter mixture. Beat well.
Grease a mini muffin tin. Roll dough into 1 inch balls and push firmly into and up the sides of muffin tins. Bake 6-8 minutes or until cooked through.
While still hot, push a mini Reese's into the cookie. Place back in the oven for 1 minute.
Allow to cool in the pan 15-20 minutes then remove to a cooling rack.
by The Savvy Kitchen