Spray crockpot with nonstick spray. Prepare the ham by rubbing brown sugar over the skin. Place ham in crockpot.

Pour citrus juices over the ham. Season with salt and pepper to taste.

Cook on LOW for 3-4 hours until heated through.

Remove ham from crockpot. Transfer juices to a small sauce pan and add cornstarch. While constantly stirring, bring juice to a boil for 1-2 minutes. Remove from heat and sauce will thicken slightly.

Pour sauce over ham and garnish with parsley.