Asparagus, broccoli, ginger, and mint stir-fry

INGREDIENTS
1 tbsp sesame oil or vegetable oil
2 red chillies, deseeded and finely chopped
5cm (2in) piece of fresh root ginger, sliced into fine strips
1 bunch of spring onions, cut into 5cm (2in) lengths
2 garlic cloves, grated or finely chopped
1 red pepper, deseeded and sliced into fine strips
1 head broccoli, about 300g (10oz), cut into florets
1 bunch of fine asparagus spears, trimmed and halved
1 tbsp caster sugar
salt and freshly ground black pepper
handful of mint leaves

METHOD
Heat the oil in a wok over a medium-high heat, and swirl to coat the surface. Add the chillies and ginger and toss for a few seconds, then add the spring onions, and a few seconds later add the garlic. Stir-fry for 5 minutes until soft.
Add the pepper, and stir-fry for a few minutes. Add the broccoli, and stir-fry for a few minutes more, before adding the asparagus. Continue stir-frying for another minute or two.
Sprinkle the sugar over the vegetables, and season well with salt and pepper. Stir-fry for a few seconds until the sugar has dissolved. Remove from the heat, and stir through the mint leaves. Serve immediately.