Beat butter and granulated sugar in large bowl until light and fluffy. Add eggs; one at a time; beating well after each. Gradually add powdered sugar; blending well. By hand; stir in flour; cocoa; and walnuts until well blended. Spoon batter into greased and floured bundt pan. Bake at 350 deg. for 58 62 minutes. Cool upright in pan on cooling rack for one hour. Invert onto plate. Cool completely. Spoon glaze over top of cake; allowing some to run down sides. ----