Rinse cranberries and shake dry. Place in small saucepan with water, wine, and sugar.
Cook at medium-high heat and simmer until the berries begin to pop, about 8 minutes. Remove from the heat. Mash mixture slightly.
Pass the mixture through a fine mesh strainer directly into a glass 9x9-inch pan, pressing gently. Add the zest and stir to combine.
Place in the freezer until set, at least 5 hours. Once frozen, scrape the mixture with a fork to create a shaved ice, snowy texture. Serve immediately in pretty, sparkly glasses, garnished with a cute wheel slice of kumquat or serve in large, deep ceramic spoons between courses for a palette cleanser.
Notes
* I love 'Electra' from the Quady Vineyard, with a honeyed, orange-blossomed taste. It's perfect with the tartness of the cranberries. Look for the bottle with a colorful angel on the label. If you prefer to not use alcohol at all, a ¼ teaspoon of orange blossom water is a nice substitution.
Recipe by story of a kitchen at https://www.storyofakitchen.com/dessert-recipes/cranberry-granita-recipe/