In a large skillet over medium heat, melt the margarine. Add the chicken, onion, salt, and pepper. Cook until the chicken is browned on both sides. Reduce the heat to low, cover, and cook for 20 to 30 minutes. Add the thyme, basil, white wine, and sherry and continue cooking for 15 minutes more, or until done.
In a small saucepan, bring the cream to a boil and cook to reduce the volume somewhat. Add the lemon juice.
Transfer the chicken to a serving dish. Add the hot cream to the pan juices and stir briefly over a hot burner. When well blended, pour over the chicken and serve.
“Wow!” reported one young tester, whose mom has already passed the recipe on to several friends. This dish offers great flavor and an elegant presentation for very little effort. Serve any extra sauce over rice or buttered noodles for a fabulous meal.