Mix the vinegar, sugars, coriander, cinnamon and cloves together in a saucepan. Boil over medium heat for 2 to 3 minutes. Remove the saucepan from the heat and stir in the ginger and jalapenos. Add the grapes and allow to sit at least 1 hour or preferably, overnight. Use the grapes in your next chicken or fruit salad.
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Recipe courtesy Chamisa Weinmeister, Known World Guides