Peanut Butter Cup cookies

I've made these many times before but can't find them on my blog so I'm adding them.  I doubled this recipe and have been baking all day!  But the neighbors will have their gifts =)

• 
  
• 1 3/4 cups all-purpose flour
• 1/2 teaspoon salt
• 1 teaspoon baking soda
• 1/2 cup butter, softened
• 1/2 cup white sugar
• 1/2 cup peanut butter
• 1/2 cup packed brown sugar
• 1 egg, beaten
• 1 teaspoon vanilla extract
• 2 tablespoons milk
• 40 miniature chocolate covered peanut butter cups, unwrapped

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

Sift together the flour, salt and baking soda; set aside.

Cream together the butter, sugar, peanut butter and brown sugar until fluffy. Beat in the egg, vanilla and milk. Add the flour mixture; mix well.

Shape into 40 balls and place each into an ungreased mini muffin pan.

Bake at 375 degrees for about 8 minutes. Remove from oven and immediately press a mini peanut butter cup into each ball. Cool and carefully remove from pan.