Cream shortening; gradually add sugars. Beat in eggs and pumpkin. Sift together dry ingredients and add alternately with milk to creamed mixture. Fold in hazelnuts. Batter will be heavy. Pour into 3 greased and floured 8-inch layer cake pans. Bake in 350 oven for 30 minutes. Cool 5 minutes in pans, then remove to cooling racks to cool completely. Add roasted, chopped hazelnuts to butter icing for frosting and garnish with sliced hazelnuts.