Berwick Sponge Cake
6 eggs
9 ozs. powdered sugar
12 ozs. sifted flour
2 even tea-spoons cream of tartar
1 even tea-spoon carbonate of soda
1 lemon
Beat the eggs, yolks and whites together, with the sugar until very light. This should take about half-an-hour. Take half of the flour and sift it gradually into the eggs and sugar. Mix the cream of tartar with a gill of water, and add it to the mixture. Beat for a minute. Add the rest of the flour and the juice and rind of the lemon. Add a little salt. Mix well. Dissolve the carbonate of soda in four table-spoons of hot water. Stir it carefully in. Beat again. Bake in large square or oblong tins in a quick oven.