Wash the fresh cherries and pit the cherries before placing them with sugar in a glass jar.
Cover the cherries with the vodka up to the top and close it tight.Place the jar in the refrigerator for a minimum of 10 days and turn it upside down everyday for the first 3-4 days to help dissolve the sugar.
Notes
The minimum required storage is 10 days, but you can keep a jar for up to 1 year in a dark cool place.
Shake it daily until the sugar is completely dissolved and once a month thereafter.