1 medium savoy or Chinese cabbage
2 cloves garlic, peeled
1-inch piece fresh ginger, peeled
6 scallions, white and light green parts, roughly chopped
1/4 cup fresh cilantro leaves
1 to 2 fresh small red chili peppers
1 tablespoon fish sauce
4 trimmed boneless skinless chicken thighs, roughly chopped (about 1 pound)
1 (8-ounce) can water chestnuts
2 tablespoons juice and 2 teaspoons grated zest from 2 limes
1 teaspoon sesame oil
Your choice of dipping sauce, such as prepared sweet chili sauce, or hoisin thinned with soy sauce
1 tablespoon toasted sesame seeds