Lydia'S Orange Chiffon Cake
["2 1/4 c. sifted Softasilk cake flour", "1 1/2 c. sugar", "3/4 c. water", "1/4 c. orange juice", "1/2 c. Wesson oil", "3 tsp. baking powder", "8 to 9 egg yolks (should be room temperature)", "rind of 1 large orange", "1 tsp. salt"]
["Beat egg whites together well and add 1/2 teaspoon cream of tartar.", "Add the rest of the ingredients and beat well.", "Bake at 325\u00b0 for 1 hour.", "Then turn oven to 350\u00b0 for 5 or 10 minutes.", "Cool cake upside down on bottle for 2 hours before releasing cake.", "Use 10-inch tube pan."]
["Softasilk cake", "sugar", "water", "orange juice", "Wesson oil", "baking powder", "egg yolks", "salt"]