Melt together butter... 
and sugar
in microwave oven, stirring often...
until the sugar is dissolved.
Depending on the strength of your microwave, this could take a few times in and out of the oven.
Stir often...be patient...it's worth it!
It will "souffle-up" when it is ready to add the cream
Add the cream slowly
along with the vanilla
stir until blended and smooth
Return to microwave to warm through.
You can also create the butter sauce in a saucepan on the stove.
The butter sauce can be made ahead and stored in the freezer.
