Skinless · Boneless Swai Fillets Contains up to 30% added solution of water, potassium citrate, sodium tripolyphosphate, salt. Product of Vietnam. Swai is a sweet water fish that features a mild flavor and delicate texture, making it great for every recipe that calls for a tasty marinade or seasoning. Pan-fried: Season the fillets with your favorite spices. Heat oil in a skillet over medium heat. Cook the fillets for about 5 minutes each side until golden brown and flaky.