In a heavy skillet, sauté mushrooms in batches in butter and oil until golden. Reserve.
Add more butter and oil and sauté shallots until softened. Add wine, stock, and optional gelatin, bring to a boil and cook, uncovered, until reduced to about ⅓.
Add cream and reduce further. Stir in chicken and mushrooms and simmer about 5 minutes. Season to taste.
Serve with basic brown rice (page 466) or as a filling in buckwheat crepes (page 480).
