Black Walnut Cake

Directions

1. 1
   Cream butter and shortening.
2. 2
   Gradually add sugar; beat well. Add egg yolks; beat well.
3. 3
   Combine buttermilk and soda; stir well. Add flour to creamed mixture alternately with buttermilk.
4. 4
   Stir in vanilla.
5. 5
   Add the walnuts.
6. 6
   Beat egg whites with cream of tartar until stiff peaks form.
7. 7
   Fold in batter.
8. 8
   Pour into 3 greased and floured pans.
9. 9
   Bake at 350° for 30 minutes.
10. 10
    Cool 10 minutes in pans before removing.