*Heavy Whipping Cream-- Quick note on the amounts used: The more humid it is, the less moisture you would need, so use the 1/2 cup amount in the summer when the air is moist. In the winter, or when the air is dry, it makes sense that you would use the greater, or 2/3 cup amount of liquid. Whether you know your dry or humid air, start with the smaller amount. You can always add more half-and-half or milk if you need it.