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How to bake an angel food cake
Separate the eggs before heating the oven, adding the whites to a liquid measuring cup until you have 1 1/2 cups.
It will take about 12 large eggs.
Preheat the oven to 350f/180c.
Sift the flour before measuring.

[I] Sift out the wet eggs and beat them until the bread crumb forms. Scoop 2 1/2 cups of the crumb mixture into the bowl..
[II] The sifted flour will develop an egg flavor and be easier to pour and to save. Place the bran into the centre of the line in the bowl..
[III] If you do not have a sifter, use a whisk to fluff the flour before measuring. Add about half the sugar to the flour and sift again..
[IV] Stir the flour into the sugar in a shallow dish. Separate the egg whites from the sugar and dump out the lumps (added or combined)..
Answer:
[III]