The characters in the 1987 movie "Moonstruck" toast the engagement with champagne. Vincent Gardenia (the father) puts sugar cubes in the flutes before serving them. Why?
It increases the effervescence and sweetness of the wine, and symbolizes the wish that your life will be the same - there is an "old wives tale" that says "never let the devil know your happy" so this is one way of insuring a happy wish and keeping it secret from the devil. - according to my bff grandma Luchetta
