fill your blender to the 400ml line with coconut chips (300ml line with desiccated ground coconut).
add hot water to just below the 1200ml line (900ml line with desiccated coconut); wait for it to cool down and for the coconut chips to soften.
whizz on highest speed for 30 seconds; rest for 30 seconds; repeat 2 more times.
pour ⅓rd into a fine-mesh sieve lined with a muslin cloth, positioned over a jug or container.
let the liquid run through, then wrap and squeeze the pulp until dry (you can either discard the pulp or use it to make your own coarse coconut flour).
repeat previous step twice more.
transfer your lovely coconut milk to a suitable container using a funnel.
allow to cool and refrigerate.
to avoid the formation of a thick fat layer, take the bottle out of the fridge and shake it vigorously every 10 minutes until very well chilled.