Fruit salad fruit salads include strawberries, pineapple, honeydew, watermelon, grapes, and kiwifruit. Various recipes may call for the addition of nuts, fruit juices, certain vegetables, yogurt, or other ingredients. One variation is a Waldorf-style fruit salad, which uses a mayonnaise-based sauce. Other recipes use sour cream (such as in ambrosia), yogurt or even mustard as the primary sauce ingredient. A variation on fruit salad uses whipped cream mixed in with many varieties of fruits (usually a mixture of berries), and also often include miniature marshmallows. Rojak, a Malaysian fruit salad, uses a spicy sauce with peanuts and shrimp paste. In the Philippines,
Morphism of algebraic varieties "x" if there is a neighbourhood "U" of "x" and a neighbourhood "V" of ƒ("x") such that ƒ("U") ⊂ "V" and the restricted function ƒ:"U"→"V" is regular as a function on some affine charts of "U" and "V". Then ƒ is called regular, if it is regular at all points of "X". The composition of regular maps is again regular; thus, algebraic varieties form the category of algebraic varieties where the morphisms are the regular maps. Regular maps between affine varieties correspond contravariantly in one-to-one to algebra homomorphisms between the coordinate rings: if ƒ:"X"→"Y" is a morphism of affine varieties,