Thanks Andie, looks like I will have to buy a culture if I want to make cultured butter. i am looking forward to reading your technique when you next make cultured butter. Butter, cheese and yogurt making are all so interesting when you can use the thermomix. Not sure where I read about adding cream to the milk when making yogurt, I still have about 500 mls Jersey cream left. I usually have greek yogurt after draining the natural yogurt. My question is, has anyone added cream, and does it make the yogurt really nice as a treat?