Garlic-Chile Chicken Recipe
In a large saucepan, heat oil over medium-high. Add chicken, skin side down, and cook until skin is golden and crisp, about 5 minutes. Flip and cook 2 minutes more. Transfer chicken to a plate.
Discard all but 1 tablespoon fat from pan. Add garlic and cook, stirring, until fragrant, 30 seconds. Stir in vinegar, soy sauce, red-pepper flakes, and sugar. Return chicken to pan, skin side up. Bring to a boil, cover, and reduce heat to low; cook 15 minutes (liquid should be gently simmering; adjust heat if necessary). Uncover, raise heat to medium, and cook until sauce is reduced by half, 10 minutes.