Candice's Chicken Fajitas

This is my sister in law's recipe and we absolutely love it!  It's super easy and fast to make.  Enjoy!

Ingredients:
-1 large onion, thinly sliced
-2 uncooked skinless, boneless chicken breasts, cut in bite size chunks
-2 tsp Worcestershire sauce
-2 tsp soy sauce
-2 tsp apple cider vinegar
-1 tsp garlic powder
-2 tsp chili powder
-1/4 tsp cayenne pepper
-1 medium green pepper (or frozen pepper strips)
-6 inch flour tortillas
Directions:
Combine liquids and spices to make marinade.  Marinate chicken and onions in refrigerator for at least 30 minutes (the longer, the better).  Heat about 1 Tbs olive oil in skillet on medium-high to high heat.  Discard marinade, and place chicken and onions in hot skillet.  Once chicken is cooked through, add peppers and cook 2-3 minutes longer.  Serve hot with a dollop of sour cream on top of warm tortillas.  Enjoy!