Everyone who has tried to prepare homemade whipped cream has faced the same problem: the cream won't peak. Sometimes, we tend to keep whipping in a desperate attempt to get some peaks and we end up with butter. “What's wrong with this stupid cream?” we yell in frustration. If you've been in this situation, you also know the simple solution: chill the bowl and beaters before you begin and use cold cream. But, do you know why this works?