Few places are as synonymous with black currants as Burgundy, France, where the fruit flavors the famous crème de cassis liqueur. At Joseph Cartron in Nuits-Saint-Georges, the fifth-generation ...

Add the vinegar, black currants, and crème de cassis and bring back to a boil. Turn the heat to medium-low and simmer, stirring occasionally, until the mixture is syrupy and reduced by about half, ...