Melt the fat. Mix flour, sugar and baking powder. Add egg yolk, lemon juice and fat. Use the dough hooks of the hand mixer to make crumbles. For the filling drain the pears.
Separate eggs. Cream fat and sugar. Add lemon juice, quark, egg yolks and semolina and mix. Beat the egg whites until stiff, fold into the quark mixture. Put 2/3 of the crumbles into a springform pan (26 cm Ø), press it down a little.
Fill with quark mixture. Cover with pear halves. Sprinkle the rest of the crumbles on top. Bake in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 1 hour. Before serving, decorate as desired with sugar crystals, baby pears and mint.
Results in about 12 pieces.