Peanut Butter Cup Cookies

1/2 cup butter

1/2 cup brown sugar

1/2 cup white sugar

1/2 cup peanut butter

1 egg

1/2 tsp vanilla

1 1/4 cup flour

3/4 tsp baking soda

1/2 tsp salt

48 peanut butter cups

Beat butter, sugars, peanut butter, egg and vanilla. Stir together flour, soda, and salt and add to creamed ingredients. Stir well. Chill 1 hour. Form into 48 balls. Put into well greased mini-muffin pans. Bake at 350 for 10-12 minutes. Remove from oven and push a peanut butter cup into each one.