Name: Chicken quesadillas with serrano chiles and white Cheddar
Prep time: 20 min
Cook time: 70 min
Yield: 4
Cuisine: Mexican
Ingredients: 2 pounds chicken thighs (about 5 thighs); Salt and freshly ground black pepper; 3 tbsp. vegetable oil, plus more for cast iron skillet; 1 medium onion, chopped; 5 or 6 garlic cloves, peeled and smashed; 2 tsp. dried oregano; 2 tsp. dried cumin; 1 (730g) tin chopped tomatoes; 2 limes, juiced; 1 tbsp. sugar; 1/2 tsp. salt; 8 to 10 flour tortillas; 1 (225g) tin whole serrano chiles, roughly chopped; 225g grated sharp white Cheddar; Chopped fresh cilantro leaves, for garnish