HI Bre,
The ingredients for ice cream are milk, sugar, cream, air, and some fruit flavoring.
A good recipe for sherbet is:
1/2 teaspoon of citric acid
1/4 teaspoon of bicarbonate soda
1-2 spoons of icing sugar
4 lucazade tablets
- actually, they're probably asking about Sherbet the frozen dessert, the American name for what can be anything from a fruit/sugar/water/eggwhite mixture (more a sorbet) to a gelato-esque fruit/sugar/milk product. Both are frozen in an air-incorporation method similar to Ice-Cream/Gelato, but are usually fruit flavored, often tart (citrus flavours abound, with many recipes also including lemon juice) and not as thick or milky/creamy as an ice cream or a gelato.