Ice cream churns the ice cream mixture while cooled inside a household freezer. Some more expensive models have an inbuilt freezing element. A newer method is to add liquid nitrogen to the mixture while stirring it using a spoon or spatula for a few seconds; a similar technique, advocated by Heston Blumenthal as ideal for home cooks, is to add dry ice to the mixture while stirring for a few minutes. Some ice cream recipes call for making a custard, folding in whipped cream, and immediately freezing the mixture. Another method is to use a pre-frozen solution of salt and water, which
Neapolitan ice cream cream may be introduced into almost any combination unless coffee were used. Banana cream, pistachio, or almond cream with cherry water and damson or strawberry water are other options. "The Neapolitan Ice Spoon has a double use; ice bowl is for putting the mixture into the mold, and the handle is for leveling it. The boxes may be made of tin, which is less expensive than pewter. They are generally sold small enough to make single ices, but these are much more troublesome to prepare. After filling the molds, if there is no cave, 'bed' the ice in the usual