In a medium bowl, beat together butter or margarine, brown sugar, egg and coffee powder until fluffy. Add the flour, baking soda, salt, cinnamon, nutmeg and cloves, beating until blended. Stir in raisins and walnuts. Drop by teaspoonfuls, 2 inches apart, on ungreased baking sheets.
Bake 8 to 10 minutes or until bottoms are lightly browned. Remove cookies from baking sheets. Cool on racks.