Mousseline Pudding. (Lizzie Emslie, Castle Grant. 1894.)
Break the yolks of 6 eggs into a bain-marie pot. Add ½ lb. castor sugar, 2 ozs. fresh butter, the juice of one lemon, the grated rind of two lemons.
Stir this mixture over the stove till it thickens. Next strain it through a fine strainer or through a tammy cloth into a clean basin. Leave it to get cold.
Having previously beaten 4 of the whites of egg to a stiff froth, on a plate with a palette knife, add them to the pudding mixture, and put all into a prepared mould which has first been buttered and then dusted with sugar.
Steam in a pan of hot water, with lid of mould on, for 2 hours. Should the water boil. the pudding will be spoilt.