Select the blueberries, wash and drain well. Beat the sour cream and vanilla sugar with the whisk of the hand mixer until creamy. Finally stir in 4 tablespoons of milk.
Melt the fat, let it cool down. Mix eggs, sugar and salt with the whisk of the hand mixer until creamy. Stir in yoghurt, fat and 200 ml milk. Mix flour and baking powder and stir in. Fold in 250 g blueberries.
Heat the clarified butter in portions in a large coated pan. Bake 3 pancakes in portions on each side for about 2 minutes on medium heat until golden brown. Remove from the pan and stack on a preheated plate. Keep warm. Bake about 12 pancakes in total.
Put some vanilla sour cream and blueberries on the pancakes. Drizzle with maple syrup. Add the remaining vanilla sour cream and blueberries.