Wash the lemon with hot water, rub dry and grate the peel. Bring milk, lemon rind, 2 tablespoons of sugar and 1 pinch of salt to the boil. Stir in the polenta with a wooden spoon. Simmer at low heat while stirring for about 20 minutes.
Coat a small baking tray or a flat square tin (approx. 20 x 30 cm) with oil. Pour in polenta about 2 cm high, smooth it down and let it cool down. Cover and leave to set in the fridge for about 1 hour.
Chop the pistachios. Dice bread, grind in the universal chopper. Mix with 1 tablespoon of sugar.
Drain the cherries and collect the juice. Take off 4 tablespoons of juice, boil the rest with 2 tablespoons of sugar. Stir sauce powder and 4 tablespoons of juice until smooth. Stir into the boiling juice and simmer for about 1 minute. Stir in cherries.
Beat the eggs. Cut polenta into approx. 8 strips. First pull it through the eggs, then turn it in the bread mixture, press it down a little. Heat butter in a large pan. Fry the polenta slices for approx. 6 minutes until golden brown.
1 minute before the end of the frying time, roast the pistachios as well. Arrange everything, dust with icing sugar.