In water, cook the macaroni for about 10 minutes and drain.
Add the butter into the hot macaroni and mix until melted. Add the egg, tomato paste, milk and cheese. Mix well. Stir in herbs, bitters, and pepper to the macaroni.
Pour in a greased baking dish and sprinkle cheese over the top. Garnish slightly.
Bake at 350° for 30 minutes or until the top gets golden brown.