Prepare the Coating: In a large bowl, whisk together all-purpose flour, corn starch, salt, and pepper until evenly combined. Add the chicken wings and toss gently to ensure they are fully coated in the mixture. Let the wings rest for 30 minutes at room temperature.

Make the Glaze: In a skillet, melt unsalted butter over medium heat. Add finely minced shallots and garlic, stirring constantly until fragrant, about 30 seconds to 1 minute.

Combine Glaze Ingredients: Stir in fish sauce, white granulated sugar, and water into the skillet. Let the mixture simmer on medium heat until it reduces by half, about 5-6 minutes.

Set Up for Frying: Heat oil in a deep pot or large skillet to 350°F (175°C) over medium-high heat. Line a baking sheet with paper towels to drain wings.

Fry the Wings: Carefully add chicken wings to the hot oil in batches, frying for 6-8 minutes until cooked through and golden brown.

Coat with Glaze: Transfer fried wings to a cooling rack for a minute. In a large bowl, combine the hot wings with the prepared fish sauce glaze, tossing gently until evenly coated.

Serve and Enjoy: Arrange glazed wings on a serving plate and drizzle with lime juice. Garnish with green onions, cilantro, or red chili peppers if desired.