Heat 10-inch skillet over high heat until hot. Add oil. When oil swirls in the pan, add chanterelles and cook, stirring, for a few moments. Add shallots and cook, stirring. Toss in tarragon and cook about 2 minutes or until it releases its fragrance. Add cherries and toasted cashews. Cook for a moment, stirring. Add wild rice and cook until hot. Serve warm with cashew sour cream.