- just peel and slice some fruits (like banana, mango, pears, strawberries, whatever ...)
- then put them on a tray / plate and into deep-freeze for some hours (at least)
(later you can put them into bowls/boxes - on the tray they'll not stick together)
- then take a blender ... add some milk (about little over the half of the volume)
- pour in some honey (per taste) ... or sugar, if you prefer that.
(if you add it after the fruits ... it won't mix that well)
- then add frozen fruits - the amount will adjust the consistency
(don't throw in too many ... should still be a bit liquid)
OVM: not sure if it will work out with a hand-blender, maybe only if you cut the pieces very small ...