Combine the currant juice and sugar in a small saucepan and bring to a simmer over low heat. Cook, stirring occasionally, until the sugar dissolves, about 4 minutes. Transfer to an 8-inch-square stainless-steel or glass baking dish and let cool completely; stir in the grape juice.
Freeze until ice crystals begin forming around the edges, about 45 minutes. Use a fork to scrape the crystals toward the center of the pan, then continue freezing, scraping every 30 minutes, until frozen, about 4 hours.
Tools You May Need
Photograph by Levi Brown
Courtesy of Food Network Magazine
Tools You May Need
Price and stock may change after publish date, and we may make money off
these links.