You might like to try full fat sour cream. It's much much higher in fats than yoghurt and lower in carbs too. I eat it with a little sweetener or I put it on salad or fried cauliflower. (Maybe you should get induction over with first though).

If you live in Germany, why not add this fact to your profile. It will stop people telling you what you can get in American shops all the time and will enable us to give you advice which may be more suited to where you live or Europe in general.