Cream the fat with the whisk of the hand mixer. Stir in the eggs one by one. Mix flour and baking powder and sieve on top. Add 1/8 litre lukewarm water and whisk smooth with the whisks of the hand mixer.
Season with salt and pepper. Cover the dough and let it rest for about 15 minutes. Peel, wash and grate carrots. Fold 3/4 of the carrots into the dough. Wash chives, shake dry and cut into fine rolls.
Wash and clean the cucumber. Grate half roughly. Cut the rest of the cucumber into slices. Mix quark, chives, up to 1 tablespoon for garnishing, and grated cucumber. Season with salt and pepper. Heat up waffle makers, spread thinly with oil.
Put approx. 2 tbsp. of dough per wafer in the waffle iron and bake for 2-3 minutes until golden brown. Take out and let cool down a little. Divide waffles into individual hearts and arrange on plates with quark and cucumber slices.
Sprinkle with some chives and grated carrots. Add the remaining quark in a small bowl.