For the gooseberry cobbler, cut brioche into slices and place in a bowl. Pour milk and whipping cream into a saucepan, add sugar, vanilla sugar and a good pinch of cinnamon and slowly bring to the boil. Pour over the brioche slices and let stand briefly.
In the meantime, separate the eggs. Beat the yolks and pour over the mixture. Stir briefly. Beat the egg whites with a little powdered sugar until stiff peaks form and mix in carefully, alternating with the gooseberries and the grated almonds. If necessary, add more sugar.
Butter a suitable baking dish, sprinkle with breadcrumbs and pour in the mixture. Bake in the preheated oven at 180 °C for 40-50 minutes. Remove from the oven, allow to cool briefly and sprinkle with powdered sugar while still warm.