Chicken a la King – Venagredos

Ingredients

• 1/2 cup butter (1 stick)
• 8 oz white mushrooms, cleaned & sliced
• 1 small yellow onion, chopped
• 1/2 cup flour
• 1 3/4 cup chicken stock or broth
• 1 1/4 cups milk
• 1/2 tsp salt
• 1/4 tsp ground black pepper
• 1/4 tsp garlic powder
• 1/2 tsp onion powder
• 3/4 tsp ground yellow dried mustard
• 1/2 cup heavy cream
• 3-4 cups cooked chicken breasts, chopped or shredded
• 1 cup frozen peas
• 8 oz jarred pimento peppers, drained well and chopped