From YavelWiki

Prep Time: 25 Mins; Cook Time: 10-15 mins; Yields: 16 Sliders

Ingredients

• 1/2 cup vegetable oil
• 2 tablespoons Worcestershire sauce
• 2 teaspoons chile powder
• 3 cloves garlic, minced
• Juice of 1 lemon
• 1 onion, chopped
• Kosher salt and freshly ground black pepper
• 8 thin-cut chicken breasts, halved and flattened
• 8 Cheddar slices, halved

Instructions

1. For the chicken and marinade: Mix up the oil, Worcestershire sauce, chile powder, garlic, lemon juice, onions and some salt and pepper in a bowl and pour into a resealable plastic bag. Add the chicken to the bag and marinate for at least 2 hours and up to 4 or overnight.
2. Twenty minutes before cooking, fire up the grill.
3. Grill the breasts for 2 to 3 minutes on the first side, then turn. Lay half a slice of cheese on each breast and grill until cooked through, a further 2 to 3 minutes.