Preheat oven to 350
Grease and flour a 10-inch bundt pan
For cake, combine cake mix, eggs, water, oil, and ground walnuts in large mixer bowl. Mix at medium speed with electric mixer for 2 minutes. Pour into pan. Bake at 350 for 45-55 minutes or until toothpick comes out clean. Cool in pan 25 minutes on cooling rack. Flip onto plate and cool completely.
Chocolate Glaze combine chocolate chips and butter in small heavy sauce pan. Heat over medium heat until completely melted and shiny stirring constantly. Spoon hot glaze over cooled cake. Garnish with finely chopped walnuts.
White chocolate glaze: combine melting chocolate and shortening in a small heavy sauce pan. Heat over low until completely melted stirring constantly. Drizzle hot glaze over top and sides of cake.