For the cloudy quark, halve the vanilla pod lengthwise and scrape out the pulp. Mix quark, 100 g sugar and vanilla pulp. Beat the egg whites until stiff, then add 50 g sugar. Whip cream until stiff.
First fold the cream and then the beaten egg white into the quark. Put it in a cold place.
Wash plums, cut in half, stone. Mix cinnamon and 2 tablespoons of sugar. Mix the plums with it.
For the tempura dough, mix the egg, 50 g sugar, 200 ml ice water and 1 tablespoon rice flour. Gradually add 100 g rice flour and mix well. Leave to swell for about 1 hour. Then stir in 200 ml ice water.
Heat frying oil in a wide pot or deep fryer to approx. 180 °C. Dust the plums with flour (type 405) and pull them through the batter with a fork. Drain briefly and fry in hot oil until golden brown.
Lift out and allow to cool briefly on kitchen paper.
Arrange tempura plums with cloudy curd cheese, mint, almonds and icing sugar.