Tips:
To cut the Cornish hens in half, using a sharp knife or kitchen shears cut along the back bone. Then cut down the middle of the breast bone and this should give 2 even pieces.
When grilling always have one side of the grill that has no coals underneath. It is important to have a side with direct heat (over the coals) and indirect heat (no coals underneath). If the meat is burning, move it away from the direct heat over to the section where there are no coals for it to continue cooking.
Any glazes that contain sugar will burn very quickly so it is best to add it in the last 5 minutes of cooking.