Sole is my favourite white fish; serve this with rice and a green vegetable for a quick, healthy meal.
- Preheat oven to 375F degrees.
- Butter a shallow baking dish and arrange fish pieces in it; cover fish with onion slices.
- In a small bowl, whisk together sour cream, wine, flour, lemon juice and the seasonings; pour over the fish and onions.
- Bake, uncovered, for 25 minutes or until fish is tender; do not overcook or fish will dry out.