Marinated Sirloin Kabobs - cooking recipe

Ingredients

1/4 cup carbonated lemon-lime beverage (like 7-up or Sprite)
1/4 cup dry sherry
1/4 cup soy sauce
3 tablespoons sugar
3 tablespoons white vinegar
1/2 teaspoon garlic powder
1/4 teaspoon salt
1/4 teaspoon black pepper, ground
2 lbs sirloin steaks, cut into 1 inch cubes
2 cups cherry tomatoes
2 medium onions, cut into eighths
1/2 lb fresh mushrooms, caps only
1 medium green bell pepper, cut into 1 inch pieces
1 medium red bell pepper, cut into 1 inch pieces
1 small pineapple, cut into 1 inch pieces

Preparation

Combine the first 8 ingredients in a large shallow bowl or ziplock bag. Add the beef cubes; cover and marinate in the refrigerator for 2 hours, stirring or turning occasionally. Remove the beef cubes from the marinade, reserving the marinade.
Thread the beef cubes, tomatoes, onion, mushroom caps, green pepper, red pepper, and pineapple onto the skewers, repeating the repetition.
Grill, covered, over medium-hot coals for 10 to 12 minutes or to your desired level of doneness, turning and basting with the reserved marinade.