In heavy saucepan pour milk and bring to a boil. Reduce to a simmer and cook for about 45 minutes, stirring occasionally. Stir in sugar and continue simmering 10 to 15 minutes, or until milk has reduced to 3 cups. Strain. Milk can be refrigerated for up to one week.
c.1997, M.S. Milliken & S. Feniger, all rights reserved