yes usually just the exact amount. i did overdo it once and i put the extra in one of those little cyclops yoghurt pots with a lid and stuck it in the freezer. my middle child took it to school for lunch but you lose the icecream texture that way. their fave is rapsberry as the berries are smaller so easier to blend up. with strawberries i have to leave them for a while to thaw a tiny bit.
what has happened to our weather? it is still like mid winter here.