Instructions

1. In a large mixing bowl, whisk together the olive oil, minced garlic, lemon juice, chopped parsley, salt, and black pepper until well combined. This fragrant marinade will infuse your skewers with flavor.
2. Add the beef sirloin cubes and shrimp to the marinade, tossing them gently to ensure they are thoroughly coated. Cover the bowl and let marinate for at least 15 minutes at room temperature, or up to 2 hours in the refrigerator for a deeper flavor.
3. Preheat your grill to medium-high heat, ensuring it's nice and hot for a perfect sear.
4. While the grill is heating, take wooden skewers and soak them in water for about 10 minutes (if using). This prevents them from burning on the grill.
5. Thread the marinated beef and shrimp onto the skewers, alternating between the two for a colorful presentation.
6. Place the skewers on the grill and cook for 2-3 minutes on each side, or until the shrimp turns pink and opaque, and the beef reaches your desired level of doneness (aim for an internal temperature of 135°F for medium-rare).
7. Remove the skewers from the grill and let them rest for a couple of minutes before serving. This allows the juices to redistribute, ensuring a juicy bite.
8. Serve the skewers hot with any remaining marinade on the side for a delicious dipping sauce.