Does a ganache frosted cake need to be refrigerated?
 

Hi. I made a cake that calls for a ganache frosting. Must I store it in the
refrigerator? How about a frosting made with 1/2 cup heavy cream, sugar and
chocolate - must that be refrigerated as well? Both recipes call for
heating of the cream, if that makes any difference. I plan to make the
frosting/ganache today and serve the cake tomorrow.

Happy Holidays, all!