Asian Chicken Stacks with Wasabi Cream

Name: Asian Chicken Stacks with Wasabi Cream
Ingredients: 2 tablespoons butter; 1 1/2 pounds skinless chicken thighs; 1 small red chile, halved and seeded; 4 cloves garlic, peeled; 1 star anise; 1/4 cup fresh squeezed lime juice; 18 gyoza wrappers; 3 tablespoons sesame oil; 1/2 cup soy sauce; 1 tablespoon honey; 2 tablespoons rice vinegar; 4 cloves garlic, minced; 1/3 cup sour cream; 3 tablespoons mayonnaise; 2 teaspoons wasabi powder; 1 tablespoon fresh lime juice; 8 scallions, cut into thin strips; 1 medium cucumber, peeled, seeded and cut into matchsticks; 1 cup fresh snow peas, cut into small julienne pieces; 1 bunch fresh watercress