I'm not a buttercream snob, but.....

Buttercream should be made with proper Butter!!

Now, this isn’t me being all ‘buttercream police’ or anything. I’m not about to be telling you if it’s not got butter in it it has to be called ‘frosting’ as it’s false advertising blah, blah, blah.

There are real and technical reasons why you should always use ‘proper’ butter in your buttercream and not a spread or margarine, and it’s all to do with fat.