Yakitori Chicken With Blistered Shishitos

Name: Yakitori Chicken With Blistered Shishitos
Ingredients: For the yakitori chicken:; 1/2 cup low-sodium soy sauce; 1/4 cup mirin; 1 tablespoon rice vinegar; 2 tablespoons sake; 3 tablespoons dark brown sugar, divided; 2 tablespoons garlic, minced; 1 tablespoon fresh ginger, minced; 1 Thai chile, thinly sliced; 1 pound PERDUE® HARVESTLAND® Free Range Boneless, Skinless Chicken Thighs; 6 bamboo skewers; 1/2 teaspoon cornstarch; 1 teaspoon toasted sesame seeds, for garnish; For the shishito peppers:; 2 cups shishito peppers, washed and dried; 1 tablespoon canola oil; Kosher salt, to taste; Lemon wedge, for garnish (optional)