Cooking rice in a palm leaf pouch

For a while I stayed with Malay friends in the Cocos Keeling Islands in the Indian Ocean and learnt how to weave little baskets called ketupat from palm leaves for cooking rice. The end product was a lovely glutenous rice ball, cooked plump and compressed tight inside the rice basket or pouch. I've been minded to repeat the process over here in Ireland so I'll record the process for posterity.

Other pointers and references

Ketupat Si Jantung Hati

How To Make a Rice Pouch Filipino Style

How to weave a ketupat casing

Step by step menganyam ketupat satay

Puso Basket Weaving

Banh chung from Vietnam