Marinated Beef Kabobs

Ingredients

• 2 pounds lean beef cut into 2 inch cubes
• 2 T beef stock or red wine
• 2 T balsamic vinegar
• 1 T Worcestershire sauce
• 1/4 cup olive oil
• 1/2 tsp . onion powder
• 1/2 tsp . garlic powder
• 1 tsp . steak seasoning
• 1/2 tsp . dried thyme
• 1/2 tsp . dried oregano
• black pepper to taste
• 2 bay leaves