Roast Duckling Dressed in Holiday Style with Orange Sauce

1/2 c. chopped onion
1/2 c. melted butter
2 Tbsp. grated orange peel
1 c. fresh orange juice
2 (4-5 lb.) ready to cook ducklings
oranges, sliced in cartwheel shapes
8 c. prepared bread stuffing
Fresh Orange Sauce

Prepare stuffing by combining prepared stuffing mix, onion, butter, orange peel and orange juice, mixing ingredients with a fork to blend. Fill body cavity of ducklings with stuffing mix, packing lightly. Fasten neck skin to back and close body openings. Place ducklings breast side up on rack in a shallow open pan. No basting is necessary. Bake in 325 degree oven for 2 1/2 to 2 3/4 hours for 3 to 4 pound birds or 2 3/4 to 3 hours for 4 to 5 pound birds, or until thick portion of legs feel soft when pressed and legs can easily be moved up and down. Arrange on a large platter. Pour some fresh hot orange sauce over ducklings. Garnish with orange cartwheels. Serve with remaining orange sauce on the side.