P.F. Chang's Chicken Lettuce Wraps {Copycat Recipe}

Name: P.F. Chang's Chicken Lettuce Wraps {Copycat Recipe}
Prep time: 5 min
Cook time: 15 min
Total time: 20 min
Cuisine: Asian
Ingredients: 1 tablespoon olive oil; 1 tablespoon sesame oil; 1 pound ground chicken (I’ve also used ground turkey with good results); 1 medium/large sweet Vidalia or yellow onion (diced small); 1/3 cup hoisin sauce; 2 tablespoons low-sodium soy sauce; 1 tablespoon rice wine vinegar; 1 tablespoon Asian chili garlic sauce (or to taste (sriracha may be substituted)); 3 cloves garlic (finely minced or pressed); 1 teaspoon ground ginger or 2 teaspoons freshly grated ginger (or to taste); one 8-ounce can water chestnut (drained and diced small); 2 to 3 green onions (sliced into thin rounds); 1/2 teaspoon salt (or to taste); 1/2 teaspoon freshly ground black pepper (or to taste); butter lettuce leaves (for serving)