quetsche

Prunus domestica subsp. insititia, or sometimes Prunus insititia. The quetsche was introduced in Western Europe by the Romans, and today is grown in Alsace, the Franche-Comté and Lorraine. It is rarely eaten raw but are frequently used in the kitchen for tarts or cooked with meat or game dishes.

It is a bit sweeter than a prune de damas, or damson plum, although in France these trees are only used as rootstock for grafting on the sweeter quetsche or other variety.

The curious name for them in French is said to derive from Luxembourgeoise Zwetsche.