Finely slice the spring onions. Dice the chilli. Pick the leaves from the coriander and roughly chop. Zest and juice the lime. Crush the garlic clove and leave whole.
Tenderise the steak by hammering it with a meat cleaver and then slice it into thin slices.
Mix the ingredients for the marinade together with a splash of groundnut oil and then add to the steak. Make sure the steak is evenly coated. Allow to marinate for atleast 30 minutes.
Cook the soba noodles in rapidly boiling water for 3 minutes until tender. When cooked, drain and cool the noodles under cold running water.
Once cool, dress the noodles with the red chilli, half of the coriander, half of the spring onions,sugar, soy sauce, lime juice and zest.
Heat a wok until very hot and add a splash of groundnut oil. Stir-fry the steak for 2 minutes and then add the sherry and soy sauce. Remove from the heat and stir through the remaining spring onions and chopped coriander.
Serve the noodles in a bowl with the sliced steak on top. Garnish with a wedge of lime and a few sprigs of coriander.
«When cooking the steak make sure the wok is very hot and only cook the beef for a couple of minutes to keep it rare and tender.»