01 -
Fill a tall glass with crushed ice.
02 -
Pour the flavored syrup evenly over the ice.
03 -
Add the chilled soda, pouring gently to preserve carbonation.
04 -
Slowly drizzle the half-and-half or heavy cream over the drink.
05 -
Stir lightly to mix, or leave unstirred for a marbled appearance.
06 -
Top with whipped cream and a maraschino cherry if desired. Serve immediately.