Chennai Chicken Wings

Ingredients

• 2 tablespoons cornstarch
• 2 tablespoons rice flour
• 4 teaspoons cayenne pepper
• 4 teaspoons paprika
• 4 teaspoons ground cumin
• 4 teaspoons garam masala
• 1 teaspoon ground turmeric
• 2 teaspoons freshly ground black pepper
• 4 teaspoons kosher salt
• For the Sauce:
• 1/2 cup seasoned rice vinegar
• 2 tablespoons thinly sliced red onion
• 1 tablespoon thinly sliced ginger
• 1/2 tablespoon minced fresh chives
• 2 teaspoons sambal chili paste
• 1/2 teaspoon red pepper flakes
• 4 pounds chicken wings
• 1 teaspoon vegetable oil, or as needed
• For the Ginger Oil:
• 1 tablespoon freshly grated ginger
• 2 tablespoons vegetable oil