Mix Maggi liquid seasoning, oil, Worcestershire sauce, brown sugar, garlic, lime juice, and black pepper in a bowl until the sugar dissolves.
6 tbsp maggi liquid seasoning, 4 tbsp neutral oil, 2 tbsp worcestershire sauce, 2 tbsp brown sugar, 4 cloves garlic, 2 tbsp lime juice, 2 tsp black pepper
Add the steak cubes and toss to coat. Cover and refrigerate for at least 2 hours. This short marinating time helps tenderize the meat without making it mushy.
3 lbs top sirloin or flank steak
Thread the marinated steak, red bell pepper, and red onion onto the skewers, leaving a little space between each piece so they cook evenly.
2 large red bell peppers, 2 large green bell peppers, 1 large red onion
Heat your grill until it’s hot. Spear half an unpeeled onion with a grill fork and rub the cut side over the grates. The onion helps clean and coat the grill. Spray the grates with high-heat cooking spray before adding your skewers.
½ onion, high heat cooking spray
Preheat your grill or skillet to high heat (450°F to 500°F). Grill the skewers for 6 to 8 minutes, turning every 2 minutes so they get an even, browned crust. to a clean platter and let them rest for 5 minutes before serving.