Mangia!  automatically sorts out singular from plural ingredients, so that you don't have to. When you say that a recipe includes some sort of "apple," be it “2,” “3 cups peeled,” or “1/2,” then the aforementioned “apple” may appear in an ingredient list as "1 apple," "2 apples," or "3 cups peeled apple."  Mangia!  even makes sure plurals are right when scaling recipes, going from “1 apple” to “2 apples” with ease.