1/2 cup butter, softened
1/2 cup shortening
2 cups sugar
4 eggs
3-1/2 cups all-purpose flour
2 teaspoons baking soda
1/2 teaspoon salt
1-1/2 cups buttermilk
2 teaspoons Vanilla Extract
1-1/2 cups ground black walnuts
2 packages (one 8 ounces, one 3 ounces) cream cheese, softened (frosting)
3/4 cup butter, softened (frosting)
5 to 5-1/2 cups confectioners’ sugar (frosting)
1-1/2 teaspoons Vanilla Extract (frosting)
1/3 cup finely chopped black walnuts (frosting)
1. In a large bowl, cream the butter, shortening and sugar. Add eggs, one at a time, beating well after each addition. Combine the flour, baking soda and salt; gradually add to the creamed mixture alternately with buttermilk and vanilla. Beat on low speed just until combined. Stir in the walnuts.
2. Pour into three greased and floured 9-in. round baking pans. Bake at 350° for 20-25 minutes or until a toothpick inserted near the center comes out clean. Cool for 5 minutes; remove from pans to wire racks to cool completely.
3. For frosting, beat cream cheese and butter in a large bowl. Add sugar; mix well. Beat in vanilla until smooth. Spread frosting between layers and over the top and sides of cake. Sprinkle with walnuts. Store in the refrigerator.