For best results, ensure the milk mixture is not too hot, as it can kill the yeast. It should feel hot to the touch but not scalding.
The steam bath method helps keep the rolls exceptionally soft and moist. Make sure the water in the pan below is simmering, not boiling vigorously, to prevent the pans from shaking.
You can substitute butter for the margarine for a richer flavor.
If you prefer a stronger cinnamon flavor, increase the cinnamon to 1.5 tablespoons.