Sour Cream Walnut Cake

Directions

1. 1
   Grease two 9-inch round layer pans.
2. 2
   Dust with flour.
3. 3
   Sift together flour, baking soda and baking powder on wax paper. Combine butter, shortening, sugar and eggs in a large bowl.
4. 4
   Beat on high speed for 3 minutes until light and fluffy.
5. 5
   Beat in orange rind.
6. 6
   Combine sour cream and milk.
7. 7
   Stir flour mixture into batter, alternating with sour cream mix, beginning and ending with flour.
8. 8
   Stir in walnuts.
9. 9
   Scrape batter into prepared pans. Bake 30 minutes or until top springs back when touched.
10. 10
    Let cool and ice with Butter Rum Frosting.