Make half the quantity of both the Almond and Chocolate Blanc-Mange; rinse out a mould with cold water, sprinkle with sugar and place into cracked ice; pour in a few spoonfuls almond blanc-mange and let it get firm; then put in a few spoonfuls chocolate blanc-mange; when the latter is firm again put in some of the almond blanc-mange; continue in this way until all is used; let the form remain for 2 hours on ice and then serve with vanilla sauce.