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Did my heavy cream turn into butter?

ixshelle Apr 10, 2012 11:16 AM

I just opened a carton of heavy whipping cream with a sell by date of March 6th to find it had a thick, slightly fluffy layer of.. something on top. It's definitely not spoiled and the cream underneath is totally usable. My question is, what formed on top? Did I accidentally make butter by neglecting the carton? Should I toss it or put it on a baked potato? I'm both confused and intrigued. Thanks in advance!


  1. GretchenS Apr 10, 2012 12:10 PM

    I'm guessing that some of the butterfat separated and rose to the top, just like in the old days before ultrapasteurization. If it smells OK, definitely put it on a potato or better yet, berries.

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