Step 1 - In a large pot, pour in sour cherries, sugar, water, and rose water.
Step 2- Bring to a boil, then reduce to a gentle simmer as concoction reduces down.
Step 3- Once a syrup begins to form (about an hour, but keep an eye on it because sugar can go from syrup to thick sticky preserve quickly), remove from heat.
Step 4- Pour the mixture into a large enough jar that the cherries can fit in as well and refrigerate, keeps up to a few months.
*When serving, in a large glass, add ice cubes, then pour syrup with cherries over ice cubes, and finally pour water over the ice and syrup mixture. Serve with a tall spoon to allow your guest to stir it to their desired level of consistency.