I want to make a hot caramel sauce to pour over ice cream. The recipe calls for melting the sugar, throwing in some butter & then adding heavy whipping cream. I don't have the cream but I do have FAT-FREE half & half. Will that work? I really don't need much cream so I don't want to buy it. If that doesn't work, can I sub evaporated milk (regular of fat free)? Or does someone have a better idea.