This is my mother's recipe for a gallon. Never had any complaints about the taste or quality. 2 cups sugar, 1 tablespoon flour, pinch of salt, 1 beaten egg, 4 cans evaporated milk, 1 teaspoon vanilla flavoring, finish filling the container with whole milk. If you put a bowl of that on top of your head your tongue will beat your brains out trying to get it.