Can't cut through a block of protein ice-cream?
This issue has only recently started happening so I'm not sure what has caused it as nothing has really changed.
I make protein ice-cream with semi-skimmed milk and protein powder. I know not to put it straight in the machine as it'll be too hard so I set it out for a while or (normally) rest it in hot water.
Whenever I put it in the machine though it jams and when I pull it out I'm left with a cylinder block of hard ice-cream surrounded by melted ice-cream. There's just a thick block of hard/dry ice cream that the machine ends up spinning and then getting jammed in (once or twice the blade has actually got stuck in the middle of it).
Any ideas what could be causing it? I use 4 scoops of powder to around 350ml of milk so is the powder ratio too high?
Thanks