Mix warm milk or water, sugar, yeast. Add flour, egg, salt, butter. Mix thoroughly. Leave the dough for 30-45 minutes in warm place.
Smear with butter the silicone mold for baking. Place dough into the silicone mold. Mix egg, mayonnaise, ketchup and spices. Spread with this mixture the dough. Add on the top the chopped sausages. Optionally, add grated cheese and chopped onion. Spread with mixture again.
Place it in a preheated oven to 430°F or 180°C and bake until golden crust. Enjoy your meal!!!