Vietnamese Grilled Chicken

Ingredients

• ["1-1/2 pounds chicken (see tips), boneless and skinless", "1 teaspoon Kosher salt", "2 cloves garlic , finely minced", "1 shallot, finely chopped", "1 teaspoon mushroom seasoning salt (or regular salt)", "2 teaspoons papaya paste (see tips)", "1/2 teaspoon baking powder", "1 teaspoon red chili powder", "2 tablespoons grated palm sugar", "2 teaspoons lemongrass puree (see tips)", "2 tablespoons lime juice", "4 tablespoons canola oil", "3 tablespoons dark soy sauce", "1 cup green onions, sliced into 2\" pieces""