I went to buy some heavy cream today and all I found was some heavy whipping cream. I put it in a jar, shook it up and it kind of worked. It solidified and then eventually let off the butter milk. But it didn't really turn into butter more of a very thick...cream kind of. Looks like a cream cheese frosting. Tasting it, it's a little bland. Can anyone give tips on making it more delicious or at least, buttery? Thanks.