Boil 1/4 litre of water, fat and salt. Stir in the flour all at once and stir the dough until it comes off the bottom of the pot as a lump and a white layer has formed on the bottom.
Put the dough into a mixing bowl and immediately stir in 1 egg. Let the dough cool down a little. Stir in the remaining eggs bit by bit. Pour dough into a piping bag with star-shaped spout. Spray a circle (approx. 24 cm Ø) in the shape of a snail on a baking tray lined with baking paper, leaving a gap of approx. 1 cm between the individual spirals.
Spray the outer spiral twice over each other as a border. Bake in the preheated oven (electric oven: 200°C/ gas: level 3) for approx. 25 minutes. Let the base cool down. Soak the gelatine in plenty of cold water.
Drain the cranberries and collect the juice. Mix quark, milk, lemon juice and zest and 75 g sugar. Squeeze out the gelatine and dissolve at low heat and stir into the quark cream.
Chill the cream. Whip 1/2 cup of cream until stiff. As soon as the cream begins to set, fold in the cream and 2/3 of the cranberries. Pour the cream into the choux pastry ring and spread. Chill the cake for about 1 hour.
Mix the cake glaze powder and the remaining sugar and place in a pot. Fill cranberry juice with water to 1/4 litre liquid, stir into the glaze. Bring to the boil while stirring constantly. Let the glaze cool down a little, then spread it on the quark cream and let it set.
Whip the rest of the cream until stiff. Spray the cake with a piping bag with star-shaped spout and sprinkle with the remaining cranberries. Makes about 16 pieces.