Drain the blueberries. Mix sour cream, quark and 80 g sugar. Set aside 2 tbsp. blueberries, mash the rest finely. Stir under one half of the cream. Mix both creams together, stir briefly so that streaks appear, chill
Cream butter, 40 g sugar, salt and vanilla pulp. Stir in the eggs one after the other. Mix flour and baking powder, stir in alternately with the milk
Heat up the waffle iron and grease it lightly. Bake 6 waffles one after the other from the dough. Divide the waffles into 5 hearts each. For each tower on 2 hearts give 1 tablespoon cream and some blueberries. Place the third heart on top and press down a little. Sprinkle with pistachios