In a medium saucepan, pour in the cherries, sugar, lemon, salt, and add vanilla bean. Simmer over medium heat until it starts to thicken, it should be about 15 to 20 minutes. If desired you can strain out any cherry bits for a perfectly smooth syrup (I leave it as is). Let it cool completely for at least 20 minutes.

Once it's cooled, add 1/4 to 1/3 cup of the syrup to 1 cup ice cold seltzer water (you can adjust with more or less to taste) and fill desired number of glasses using this ratio. Also, you can add some ice to each glass to get them extra cold.

Immediately after adding seltzer, drop in desired amount of vanilla ice cream scoops, add straws and/or spoons and enjoy!