Heat 2 tablespoons vegetable oil in a medium saucepan over medium heat until hot.
Add the chopped garlic and minced ginger and cook, stirring frequently, about 2 minutes until fragrant.
Stir in 3/4 cup sugar, 3/4 cup soy sauce, 3/4 cup seasoned rice vinegar, and 1/4 cup chili garlic sauce; simmer 1–2 minutes, stirring occasionally.
In a small bowl, whisk 2 tablespoons cornstarch with 3 tablespoons water to make a slurry.
Whisk the cornstarch slurry into the simmering sauce and cook until the sauce thickens, then remove from heat and stir in 1 1/2 teaspoons lemon juice.
Pat the 2 pounds chicken wings dry with paper towels to remove excess moisture.
Heat vegetable or canola oil in a deep fryer or deep pot to 375°F (190°C).
Carefully add the wings to the hot oil in batches and deep fry 10–12 minutes until golden and an internal temperature of 165°F (74°C) is reached.
Transfer fried wings to a wire rack to drain and rest briefly.
Place a quarter of the wings in a medium bowl, add a ladle of the warm sauce, and gently toss to coat; repeat with remaining wings and sauce.
Serve the coated wings immediately.