Garlic Roasted Chicken with Spicy Cilantro Sauce

Name: Garlic Roasted Chicken with Spicy Cilantro Sauce
Ingredients: 1 head garlic; 1 3 to 4-pound chicken, excess fat trimmed and giblets removed; Kosher salt and freshly ground black pepper; 1 tablespoon red wine vinegar, plus 1/2 teaspoon; 1/2 teaspoon ground cumin; 1 tablespoon light soy sauce; 1 teaspoon sugar; 1 teaspoon vegetable oil; 3/4 cup fresh cilantro; 1/3 cup Cotija cheese; 1/3 cup extra-virgin olive oil; 1/3 cup water; 2 to 3 jalapenos, stemmed, seeded, and diced; 1 clove garlic; 1/2 teaspoon red wine vinegar; 1/2 teaspoon kosher salt