Wash the asparagus, cut off the woody ends. Cook the asparagus in boiling salted water with sugar for 6-8 minutes. Drain, rinse with cold water and drain. Peel the mango, cut the flesh off the stone.
Cut the flesh into slices. Peel and halve onions and cut into thin strips. Cut asparagus into pieces. Mix asparagus, onions and mango
For the vinaigrette, clean the chilli, cut lengthwise, wash and remove the seeds. Cut the pod into small pieces. Whisk lime juice and zest, vinegar, chilli, salt, pepper and brown sugar. Fold in oil in a thin stream. Mix vinaigrette into the salad.
Leave to stand briefly. Season and arrange salad. Crumble the goat cheese and sprinkle over the salad. Garnish with slices of lime