Orange Cake

Directions

1. 1
   Sift the flour with the baking powder.
2. 2
   Cream the margarine and sugar until pale and fluffy.
3. 3
   Add yolks one at a time.
4. 4
   Beat well between each addition.
5. 5
   Whisk egg whites until stiff; mix soda with orange juice.
6. 6
   Add orange juice to the margarine and sugar mixture, mixing well.
7. 7
   Alternate by adding to the margarine mixture a spoonful of flour and a spoonful of egg white, mixing well with a wooden spoon to avoid curdling.
8. 8
   Stir in the orange rind; pour into a greased pan.
9. 9
   Bake in a preheated oven for 45 minutes at 350° or for about an hour.