Preheat oven to 350 degrees. In a saute pan heat oil. Season sweetbreads with salt and pepper, dredge them in seasoned flour and add them to hot pan. Add 1 tablespoon of butter to give them a crispy crust, and cook first side for 3 minutes. Turn, cook second side 2 minutes and transfer to baking dish. Roast in oven 7 to 10 minutes while you make sauce.
In saute pan cook shallots and mushrooms in pan drippings for 3 minutes, tossing. Add garlic and cook 1 minute. Add stock and thyme, bring to a boil and begin to reduce. Stir in cream and butter and adjust seasonings to taste. Divide sweetbreads between 2 warmed dinner plates, top with sauce and garnish with chopped parsley.
Yield: 2 servings