Remove the crusts and crumble the bread. Bring milk, 2 tablespoons butter and 2 tablespoons sugar to the boil. Remove the pot from the stove. Stir in breadcrumbs and let cool down a little
Bring cranberries, 4 tablespoons sugar and 10 tablespoons water to the boil, cover and simmer for about 10 minutes
Separate eggs. Stir the egg yolks into the bread mixture. Pour the mixture into a greased casserole dish (approx. 20 x 30 cm). Bake in a preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 25 minutes until golden brown
Beat the egg whites until stiff, adding 2 tablespoons of sugar. First spread half the cranberries, then the beaten egg white on the casserole. Bake at the same temperature for about 10 minutes. Add the rest of the cranberries