Reese's Chewy Chocolate Cookies

Instructions:
Heat oven to 350ºF. In large bowl, cream butter and sugar until light and fluffy. Add eggs and vanilla; beat well. Combine flour, cocoa, baking soda,and salt; gradually blend into creamed mixture. Stir in peanut butter chips. Drop by teaspoonfuls onto ungreased cookie sheet. Bake 8 to 9 minutes. Cool slightly; remove from cookie sheet onto wire rack. Cool completely.

Makes about 4 1/2 dozen