Steaming vegetable and fruits is a better way to cook them since less nutrients are lost with this method.  When vegetables and fruits are submerged in hot water, like they are when they are boiled much more nutrients are lost.  Therefore when making fresh baby food or when preparing vegetables as a side, steaming is preferred. Steaming times vary from vegetable to vegetable and fruit to fruit.  Baby food should be steamed until vegetable or fruit is tender.