Peanut Butter Cup Cookies

1/2 c. margarine, softened
½ c. creamy peanut butter
½ c. sugar
½ cup packed brown sugar
1 egg
½ t. vanilla
1 ¼ c. flour
½ t. salt
¾ t. baking soda
Peanut Butter cups

Cream together margarine and peanut butter.
Add sugar and brown sugar.
Beat until fluffy then beat in the egg and vanilla.
In separate bowl combine flour, salt & baking soda.
Add to peanut butter mixture.
Chill dough for 1 hour.
Shape into 1 in. balls.
Lightly grease 1 ¾ in. mini muffin pans.
Bake at 350 for 12 minutes.
Take out of oven and immediately push Peanut Butter cups in the middle of cookies.
Let cool completely in mini muffin pans.
Pop out with knife.