(Simmering isn’t necessary with frozen bamboo shoots.) Cut or tear the Chinese celery stalks into 5cm (2in) lengths (tearing gives it more flavour). Halve the onion then slice it. Slice the ...

You can often find fresh bamboo shoots in Asian food stores, but they’re not easy to prepare as they’re protected by many layers of overlapping, brown husk covered in fine, sharp hairs.

Bamboo sprouts or products with a life of fewer than five years, such as bamboo shoots, bamboo chopsticks or bamboo products for agricultural use, cannot be included as part of the carbon sink, it ...