3 tablespoons olive oil,
1 1/2 tablespoons red wine vinegar,
1 lime, juiced,
1 teaspoon chili powder,
1/2 teaspoon paprika,
1/2 teaspoon onion powder,
1/2 teaspoon garlic powder,
cayenne pepper to taste,
salt and freshly ground black pepper to taste,
1 pound skinless, boneless chicken breast halves - cut into 1 1/2 inch pieces,
1- In a small bowl, whisk together the olive oil, vinegar, and lime juice.
2- Season with chili powder, paprika, onion powder, garlic powder, cayenne pepper, salt, and black pepper.
3- Place the chicken in a shallow baking dish with the sauce, and stir to coat. Cover, and marinate in the refrigerator at least 1 hour.
4- Preheat the grill for medium-high heat. Thread chicken onto skewers, and discard marinade.
5- Lightly oil the grill grate. Grill skewers for 10 to 15 minutes, or until the chicken juices run clear.