1 white cake mix
2 egg whites
- OR -
1 yellow cake mix
2 egg yolks
16 oz. sour cream
1 c. white sugar
1/2 c. light brown sugar
1 tbsp. cinnamon
3/4 c. chopped nuts (walnuts or pecans)

Mix as directed on cake mix box using sour cream for liquid. Pour half of batter into a 9x13 cake pan. Sprinkle half of the cinnamon-sugar and swirl. Top with remaining batter, cinnamon-sugar and nuts. Bake as directed on cake box.