Ingredients
1 teaspoon chile powder
1 teaspoon kosher salt
1 teaspoon sugar
2 ounces fresh lime juice, plus lime wedges for garnish
Ice
4 ounces Concord grape juice
3 ounces tequila, ideally resposado
1 1/2 ounces triple sec
1 small serrano chile with seeds, thinly sliced
Black grapes, for garnish