Wash, clean and halve the strawberries. Clean, wash and cut the rhubarb into small pieces. Mix the fruits with 4 tablespoons of sugar, set aside
Grease an ovenproof dish (approx. 2 litres capacity). Beat the eggs and 125 g sugar with the whisk of the hand mixer until white and creamy. Mix flour, starch and baking powder and stir alternately with buttermilk and oil into the egg cream. Put the fruit into the mould and pour the dough over it. Bake in the preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for 60-70 minutes. After 30 minutes cover with foil if necessary
Take out the cobbler, arrange it on a plate and dust with icing sugar. Vanilla ice cream tastes good with it