Old Recipes - Chocolate Sponge

(this recipe has some words we've not been able to read, in place of each unreadable word is ??, original recipe below)

4 eggs

1 cup caster sugar

1 cup self raising flour

2 ?? of ?? milk - warm

Cocoa


Method:

Beat egg whites, add sugar, beat together, add egg yolks, fold in sifted flour, warm milk & add butter to it, fold ??. 

Bake in a moderate oven.

25 minutes.