How To Make Butter In Under 5 Minutes! | Over The Hill And On A Roll
http://www.overthehillandonaroll.com/2009/06/how-to-make-butter-in-under-5-minutes.html
Enjoy Homemade Butter in Less Than Five Minutes - Food Hacks - Lifehacker
http://lifehacker.com/5339179/enjoy-homemade-butter-in-less-than-five-minutes

Super easy butter with just cream and salt. Takes 5 mins - for real!

Homemade butter a la slashfood

using an electric mixer