Whisk the egg whites and salt with the whisk of the hand mixer until stiff, adding the sugar. Continue beating the beaten egg whites until the sugar has dissolved. Stir the jam until smooth. Lightly marble the beaten egg whites with the jam and place 10 flattened heaps of beaten egg whites on a baking tray lined with baking paper
Bake meringue in a preheated oven (electric oven: 125 °C/ convection oven: 100 °C/ gas: not suitable) for approx. 1 hour. Reduce temperature (electric oven: 100 °C/ convection oven: 75 °C) and bake for approx. 1 further hour. Turn off the oven and let the meringue dry with the oven door closed
Waiting time approx. 1 hour