Spicy Chinese Shrimp

1 pound shrimp, peeled
1 cup soy sauce
2 teaspoons crushed red pepper
2 tablespoons Worcestershire sauce
2 1/2 tablespoons garlic powder
1 tablespoons onion powder
White or black pepper, to taste

Place all ingredients in preheated cast iron skillet. Simmer over high heat until sauce thickens.

Serve over rice or noodles.