If you don't have half-and-half, do as I did and just pour equal parts milk and cream into a jar, shake it a bit—unlike cream, it will never turn into whipped cream or butter, no matter how hard you shake it! ... In spite of its name, fat-free half-and-half is just milk that's been thickened with additives like corn syrup.

Can you make butter out of Half & Half?

Can I use half and half instead of heavy or whipping cream? No. ALWAYS use heavy or whipping cream. Heavy cream is about 35-40% fat which is necessary to make butter.

How long does it take to turn half and half into butter?

As the cream thickens (within a couple of minutes of when you start shaking), keep shaking the jar! Shake the jar until butter forms. This could take between five to 20 minutes. Once you have shaken the jar enough, the liquid will suddenly separate from the butter.