Thoroughly wash Cornish game hens. Combine the rest of the ingredients. Place the clean hens in a extra large Ziploc storage bag and pour combined ingredients over the hens. Seal bag and gently massage the bag to ensure that the marinade is well distrubed. Place the bag in a 9 x 13 in pan and place in the refridgerator for 12 - 24 hours. Occasionally turn the bag during the marinading time.
Turn marinated cornish hens onto a very large rimmed cookie sheet. For easier clean up you may line the cookie sheet with parchment paper. Evenly arrange the hens. Place in a preheated 400 degree oven for 15 minutes. Then turn down the oven to 350 degrees. Continue to roast the hens for approximately l hour.
Glaze the roasted hens with the following:
1/3 c. liquid honey
1/4 c. melted margarine/butter
1/3 c. dijon mustard
Combine all the above very well and spread on top of the roasted hens. Sprinkle with salt and pepper. Roast for another 10 - 15 minutes.
Cover the roasted cornish hens with aluminum foil and allow to rest for 10 min. Arrange on serving platter. You make tuck around the hens sprigs of curley parsley and thin lemon wedges.