
½ tablespoon unsalted butter
1 brioche hamburger bun, split
3 ounces rotisserie chicken, shredded
3 ounces honey-flavored gochujang sauce, divided
1½ ounces chopped sesame Asian salad kit
1 tablespoon cilantro leaves
1 tablespoon mayonnaise
½ ounce sliced water chestnuts
½ ounce sliced radishes