In a mixing bowl, combine 1/4 cup packed dark brown sugar and 2 tablespoons each of kosher salt, freshly ground black pepper, ground ginger, and ground cumin. Add 2 teaspoons cayenne pepper. Stir until completely blended. Pack into small glass jars with tight-fitting lids. Attach a ribbon and gift tag with suggested serving ideas, such as "Delicious as a rub for pork, chicken, and flank steak."

Makes 1 cup.