* we prefer to use Serrano ham in ALL recipes that call for Prosciutto. It is now a President's Choice product, so you can find it in the pre-packaged sliced meat section. - Wrap each chicken breast in 2 slices of Prosciutto. Rub with olive oil and 1 tablespoon of rosemary. Cook at 350 until chicken in cooked through (approx. 25 minutes). For Reduction: - Fry chopped mushrooms in olive oil and rosemary. Add Balsamic Vinegar and white wine. Let this reduce over low heat 10-15 minutes. To Serve: - Slice chicken and cover with the reduction.