2 c. sifted all purpose flour
1 1/2 c. sugar
3 tsp. baking powder
1 tsp. salt
1/2 c. salad oil
7 egg yolks, unbeaten
3/4 c. orange juice
2 tsp. vanilla
2 tbsp. grated orange rind
7 to 8 egg whites (equal to 1 cup)
1/2 tsp. cream of tartar

Set out a 10 inch tube pan or 13 x 9 inch oblong pan, but do NOT grease. Sift together flour, sugar, baking powder and salt. Mix with salad oil and egg yolks. Make a "well" in center of mixture and add orange juice then vanilla and lastly orange rind. Beat with a spoon until smooth. In a large mixing bowl, whip egg whites and cream of tartar together until whites form very stiff peaks. Pour egg yolk mixture gradually over whipped whites, gently folding with rubber scraper just until blended. Pour into ungreased pan. Bake tube pan at 325 degrees for 55 minutes, then at 350 degrees for 10 to 15 minutes, or bake oblong pan at 350 degrees for 45 to 50 minutes. When cake tests done, invert and let hand until cake is cold.