1/2 cup butter, softened

1/2 cup white sugar

1/2 cup packed brown sugar

1 egg

3 tablespoons milk

1 teaspoon vanilla extract

1 1/4 cups all-purpose flour

3/4 teaspoon baking powder

1/4 teaspoon salt

In a large bowl, cream together the peanut butter, butter, white sugar, and brown sugar until well blended.

Beat in the egg, milk, and vanilla one at a time.

Combine the flour, baking powder, and salt; stir into creamed mixture.

Roll tablespoonfuls of dough into balls. Place cookies 2 inches apart onto ungreased cookie sheets. Press each ball once with fork tines.

Bake for 20 minutes in the preheated oven, or until edges are lightly browned.