Put the coffee in a pot and bring to boiling

Punch a hole in a can of sweet milk and set it in a pan of simmer- ing water about an inch deep

After the coffee has steeped until it has become very strong, and bubbles rise from the hole in the can of milk, pour the coffee in another pot, leaving the grounds behind

Add the milk, and stir in the butter

Even people who do not ordinarily take sugar in their coffee will want some sugar in this strong coffee.