I have been making creamed honey for the market for over 37 years, trying to not make mistakes anymore.
I take a pound of creamed honey and mix with about 5-7 pounds of liquid honey that is free of crystals and strained clean, all at room temperature. Whip it up good in your mixer pour it in containers. Best if you place it where it is about 50 degrees F. or in the refrigerator and it will set up nicely in 3 to 7 days, (quicker at 50 degrees.)
You can buy a container of finely creamed honey at a farm market or grocer or you can get a starter kit, using ground honey crystals, from Dadant or other bee supply store. You could grind your own crystalized honey but if you don't get it smooth enough the few large crystals will ruin your creamed honey. You do not need to pasteurize the honey as indicated in some instructions but you need to use honey below 18% moisture or its may be a problem.
As you know you can also burn out your mixer ( done that) if it isn't powerful enough and work with honey about room temperature. (Alternately use an egg beater manually.)
Creamed honey keeps at room temperature on the kitchen table until it is gone.
Dale