Preheat the oven first: Electric cooker: 200 °C/circulating air: 175 °C/gas: stage 3. Peel the onion and cut it into fine cubes. Knead the minced meat, egg, breadcrumbs, diced onion, salt, pepper and paprika powder with the dough hooks of the hand mixer. Form 4 flat meatballs of the same size. Moisten your hands with water
Heats oil in a pan. Fry the meatballs for 4-5 minutes on each side. Put the burger buns on the oven rack and bake them in the oven for about 5 minutes. Wash the tomatoes. Cut the tomatoes and gherkins into thin slices. Rinse the lettuce leaves briefly under cold water and dab them dry with kitchen paper
Now take the burger buns out of the oven, let them cool down a bit and cut them open. Spread the lower halves of the buns with salad cream. Cover them with the tomato and gherkin slices (up to 8 pieces). Place a meatball on each and spread some tomato ketchup as a "bloodstain" on top
Put the almond slivers as teeth in the front into the edges of the lower and upper roll halves. Place the roll covers on the meatballs and press them lightly on. Cut the mozzarella balls in half. Place them with the remaining gherkin slices as eyes on the burgers. Arrange the vampi burgers with the salad leaves on plates