Kung Pao Chicken Drumsticks

Name: Kung Pao Chicken Drumsticks
Ingredients: 1/4 cup vegetable oil, plus more for frying; 1 garlic clove, minced; 1 tablespoon finely grated fresh ginger; 1/4 cup dried red chiles, such as chile de árbol; 1/2 cup sugar; 1/4 cup soy sauce; 1/4 cup tamari or soy sauce (see Note); 1/4 cup dry sherry; 1/2 teaspoon red wine vinegar; 2 tablespoons cornstarch dissolved in 3 tablespoons of water; 1/2 teaspoon Asian sesame oil; 1/2 cup chopped scallions; 3 1/2 pounds chicken drumettes; Salt and freshly ground pepper; All-purpose flour, for dusting; Chopped roasted peanuts, for garnish