Boil the water until it makes big bubbles. Add salt, then break the macaroni and put it in. Cover the saucepan and boil for fifteen minutes. 
The saucepan should not be too small, otherwise the macaroni will stick to the bottom.

Prepare the sauce as follows:
Take a good slice of ham fat, and chop very fine with it a piece of onion, a piece of celery, and some parsley. 

Then put this into a frying-pan and cook until the grease is colored. (If desired, add a small lump of butter.) When well colored add two tablespoons of tomato paste dissolved in a little hot water. Boil all together for fifteen minutes.

Drain the macaroni, and put it into the frying-pan with the sauce, mix well with fork and spoon over the fire, so that the macaroni will be thoroughly seasoned, then add three tablespoons of grated Parmesan cheese, mix again, and serve.

If no tomato paste is available make the tomato sauce as follows:

Chop up fine one-quarter of an onion, a piece of celery the length of a finger, two or three basil-leaves, and a small bunch of parsley.
Slice seven or eight tomatoes (fresh or canned), add salt and pepper, and put all on together to cook in four tablespoons of good olive-oil.
Stir occasionally, and when it becomes as thick as cream, strain, and add the macaroni as before directed.