Wash the chives, dab dry and cut into small rolls. Clean, wash and dice the spring onion. Dice bacon finely and fry in a coated pan. Dice Brie and knead with cream cheese, bacon, spring onion, half chives and 2 tablespoons of puree flakes. Season to taste with salt and pepper. Spread 2 slices of Leberkäse with Obatzter, cover each with a slice. Boil 750 ml water with 1 teaspoon salt.
Remove the pot from the heat and add cold milk. Quickly stir in the remaining puree flakes. Heat the oil in a pan. Fry the slices of liver cheese for about 5 minutes while turning, remove and cut in half. Arrange with the puree on plates. Sprinkle with the remaining chive rolls. Garnish with cornichon halves, lettuce leaves and tomato slices