In a small saucepan, heat the soy
sauce, mirin, lemon juice and sugar.
Simmer for 5 mins until syrupy, then
remove from the heat. Bring a large
saucepan of salted water to the boil,
then cook the noodles and broccoli
for about 3 mins, adding the prawns
a few secs before draining. Divide the
mixture between 2 plates, pour the
warm teriyaki sauce over the top,
sprinkle with the red chilli and serve.