I use a Hinari Genie (like 'The Magic Bullet' but cheaper). I put very cold water in the container, pour in the shake; it sits on the surface of the water like a little raft. I pop a scoop of MAM on top (the secret is not to let the MAM come into contact with the water - that road leads to gelatinous disaster!) then I screw the top on, flip it over onto the mixer base and zizz away. Takes about 10 seconds.
Did you know you can also use MAM to make a 'free' jelly?
500ml of very cold water, some CD water flavouring, a drop of food colouring, add a scoop of MAM and blend IMMEDIATELY. Pour into a bowl. It'll look like a pink milkshake but put it in the fridge and within seconds it'll start to clear. The end result is a clear set jelly with a pink frothy foam on top (you can eat or discard this).
You'll get a couple of decent bowlfuls out of this amount and it's a tasty FREE dessert!