Line 1/2 baking tray with baking paper (approx. 20 x 35 cm). Line open side with aluminium foil folded several times. Separate the eggs. Beat the egg whites, 1 tbsp. cold water and salt until stiff, pouring in 50 g of sweetness. Fold in the egg yolk. Sift flour and starch on top, fold in
Paint on the plate. Bake in a hot oven (electric oven: 200 °C/circulating air: 175 °C/gas: level 3) for 10-12 minutes. Turn over onto a damp tea towel. Peel off the paper. Roll up the sponge cake, cool down
Soak the gelatine in cold water. Drain the peaches, mash 2/3, dice the rest. Squeeze the gelatine, dissolve. Stir in the puree bit by bit. Place in a cold place until it begins to gel. Whip cream until stiff. Fold 10 g sweetness, yoghurt, cream and peach pieces into the puree
Spread the biscuit with cream. Roll up from the long side. Chill for at least 4 hours. Sprinkle with 1 teaspoon sweetness. Cut into 8 slices. Warm up the jam. Spread on the cut surfaces