Sour cherry jam is one of Romania's most beloved summer preserves, made from sour cherries (Prunus cerasus) — small, red fruits with a pronounced tart-aromatic flavor that makes them superior to sweet cherries for preserving. Sour cherries cooked with sugar and lemon juice give a jam with an intense ruby-red color, a lightly set syrup, and fruit pieces that retain their shape and texture. Rich in anthocyanins, vitamin C, and antioxidants, sour cherry jam is delicious on buttered bread, as a filling for cakes, tarts, or crepes, and as a topping for ice cream or yogurt.