Quetschentaart (also known as quetscheflued) is a Luxembourgish damson plum tart that is traditionally prepared during autumn, when damson plums are in season. To make the tart base, flour, sugar, butter, salt, and eggs are combined into a firm dough that is then rolled out and tucked snugly into a buttered tart tin before it is finished with slices of fresh damson plums and baked to perfection.