Stir together flour, cocoa, baking soda and salt. Cream butter and
shortening in large mixer bowl until light. gradually beat in brown
and granulated sugars. Beat in egg and vanilla. Blend in dry
ingredients. Stir in peanut butter chips and peanuts. Drop spoonfuls
of dough, 2 inches apart, onto ungreased cookie sheets; flatten
slightly with back of spoon. Bake in 375F (190C) oven for 7 to 8
minutes. Cool on sheets 1 to 2 minutes; remove from sheets and cool
completely.
