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I have a recipe for an orange chiffon cake which is close.
 
(Canadian ingredients)
 
1 1/2 cups Sterks Gluten free flour (any gluten free flour should do)
1 1/2 cups white sugar
3 tsp gluten free baking powder (Mr. Goudas)
1 tsp salt
1/2 cup oil
7 egg yolks
3/4 cup orange or pineapple juice
1 tsp vanilla
7 beaten egg whites & 1/2 tsp cream of tartar
 
Preheat oven to 325F Sift flour, sugar, baking powder, salt. Make a
hollow. add oil, egg yolks, juice, and vanilla. Mix until smooth. Beat
egg whites in a separate bowl until stiff, with cream of tartar. Fold
the two mixes together gently. Pour into ungreased tube pan. Bake for 50
minutes. Turn pan upside down while cooling.
 
Works for us.