Combine Herbs And Pepper And Run Evenly Into Meat; Place In Single Layer In Shallow Glass Dish; Pour Olive Oil Over And Sprinkle With Half The Garlic; Marinate Overnight. Preheat Oven To 300 Degrees; Combine Remaining Onion, Garlic And Orange Zest; Remove Meat From Marinade, Reserve Liquid; Scatter 1/3 Of Onion Mixture Over Bottom Of Oven Proof Casserole Dish; Arrange 1/2 Meat On Top; Sprinkle With Another 1/3 Of Onion Mix, Another Layer Of Meat And Then Another Layer Of Onions; Pour Reserve Marinade On Casserole Along With Vinegar And 1 Cup Of Wine; Season With Salt And Cover Tightly For Three Hours. Put Flour In Small Sieve And Sift Over Cooking Juices In The Casserole; Pour In Remaining Wine; Wisk Until Thickens 5 Minutes; Add To Casserole Along With Capers; Serve Sprinkeled With Parsley.