Finely slice the pak choi, putting the leaves aside.
Char the base slices in a dry non-stick frying pan on a medium-high heat, while you peel and finely slice the garlic, then peel and finely grate the ginger.
Cook the noodles in a pan of boiling water according to the packet instructions, adding the pak choi leaves for the last 10 seconds.
Alongside, stir-fry the garlic, ginger, prawns, sesame seeds, chilli jam and 1 tablespoon of olive oil with the charred pak choi slices.
Pour the soy into a serving bowl.
As soon as the prawns are pink, spoon everything from the pan into the bowl, then use tongs to drag in the noodles and pak choi leaves with a few splashes of cooking water.
Twist and toss it all together well, taste and check the seasoning, then devour.