Silver White Cake

recipe from Derek's Mom
MIX well:
2 1/4 c cake flour
1 1/2 c sugar
3 1/2 tsp baking powder
1 tsp salt
1/2 c soft shortening
2/3 c milk
1 tsp vanilla

ADD:
another 1/3 c. milk
4 egg whites unbeaten

MIX:
Pour into cake pans that are greased and floured. Bake @ 350 for 30 minutes.