Put 160 ml water, milk, 30 g room-warm butter, salt, 3-4 tablespoons pizza spice and sugar in a bowl. Sprinkle flour over it and finally add yeast. Knead to a smooth dough with the dough hooks of the hand mixer. Then knead it again with your hands, form it into a ball and let it rise covered in a warm place for about 45 minutes. Grease the box form (25 cm long; 1 1/2 litre capacity) and dust with flour.
Knead the dough once again well and put it into the tin. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 30 minutes. Remove from the oven and leave to cool in the mould for 10 minutes. Turn out onto a cake rack and let cool off. Drain the mozzarella and cut into slices. Wash the tomatoes and cut into slices. Wash lettuce and shake dry. Cut bread into slices and brush thinly with 60 g butter. Cover with lettuce, salami, tomatoes and mozzarella.
Wash the tomatoes and cut into slices. Wash lettuce and shake dry. Cut bread into slices and brush thinly with 60 g butter. Cover with lettuce, salami, tomatoes and mozzarella. Sprinkle pizza spice on top and drizzle with olive oil. Serve immediately