Cook onion and garlic until sauteed well. Set to the side.Combine water and broth and cook barley according to directions on package. Juice lemon then add juice to cooking barley. When you can start to see a little of the barley through the water, add the cooked onions and garlic. Barley should be tender but not mushy or crunchy-hard. Add parsley to barley and fold mixture in until even through out. Parsley may wilt a bit due to heat. You may wait to add parsley until you are ready to serve -- But don't let it get cold.