Luxembourg · Sweet finish

Quetschentaart

Open plum tart

Halved Italian plums packed upright in tight circles on a buttery shortcrust base, baked until jammy and served with softly whipped cream.

Quetschentaart

When the purple prune plums ripen in September, Luxembourg's bakery windows fill with Quetschentaart: a plain, buttery pastry base, plum halves standing shoulder to shoulder in rings, and a scattering of sugar that bakes into a sticky glaze. It is served at afternoon coffee with a cloud of whipped cream, and for a few weeks it is practically the national clock, telling everyone that summer is over.

The tart probably came over the border from Germany, but Luxembourg has made it so thoroughly its own that nobody asks for its passport. It is easy to make, it travels in its tin, and it happens to be in season for the late September race weekends that Luxembourg's Grand Prix once occupied.

The pastry

Ingredients

Method

  1. Beat the soft butter and sugar in the bowl with the mixer or spoon for 2 minutes. Add the egg and beat until smooth.
  2. Add the flour and salt and mix briefly with your hand or the spoon until it forms a dough. If it stays crumbly, add the water a teaspoon at a time. Do not knead more than needed; overworked pastry turns tough.
  3. Flatten the dough into a disc about 1 inch (2.5 cm) thick, wrap it in plastic wrap and chill for 30 minutes.
  4. Butter the tart pan. Dust the counter and rolling pin with flour and roll the dough into a circle about 2 inches (5 cm) wider than the pan and 1/8 inch (3 mm) thick. Roll it loosely around the pin, unroll it over the pan and ease it into the corners. Trim the edge. If it tears, simply press the pieces together with your fingers. Prick the base all over with a fork.

The plum filling

Ingredients

Method

  1. Wash and dry the plums. With the small knife, cut each one along its seam down to the stone, twist the halves apart and pull out the stone. Make a small cut into the top of each half so it opens a little, like a fan.
  2. Sprinkle the breadcrumbs over the pastry base. Starting at the outside edge, stand the plum halves cut side up and tilted, packed tightly against each other in rings, working inward to the center.
  3. Mix the sugar and cinnamon. Bake the tart on the middle shelf for 25 minutes, then sprinkle the sugar over the plums and bake for 15 to 20 minutes more.
  4. Set the tart on the rack and let it cool for at least 30 minutes before cutting, so the juices set.

Whipped cream

Ingredients

Method

  1. Whisk the cold cream and sugar in a bowl until it thickens and holds soft peaks. Stop as soon as it gets there.

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