- 1 cup sugar
- 1/4 cup maraschino cherry syrup, plus cherries for garnish
- 1 cup half-and-half
- 1/4 teaspoon vanilla extract
- 1 liter cola, chilled
- 4 ounces vanilla vodka, optional
In a small pan over medium heat, add the sugar and 2 cups water and stir to dissolve. Bring to a boil, remove from the heat, and cool.
Fill 4 tall glasses 3/4 full with cola. Add 2 scoops of the frozen cherry mixture to each glass and top with a cherry. Add 1-ounce vanilla vodka, if using, to each glass.
Scrape the remaining frozen cherry mixture into a resealable freezer container and keep in the freezer for up to 1 week.