Prepare an ice bath by placing half the water in a large bowl then adding ice cubes.
Bring the remaining water to a boil in a large pot. Add the salt and, turmeric Stir, then add the spinach leaves. Once the pot returns to the boil, use a slotted spoon to immediately remove the spinach and place it into the ice water bath.
Drain the spinach once it is cold. Taking a handful of the spinach at a time squeeze the liquid from it and place into the blender. Reserve some of the liquid you squeeze out. Puree the spinach, adding a little of the reserved spinach water if needed. Set aside.
Refrigerate immediately to stop any residual heat browning the spinach.
to cook
Heat the oil over medium heat in a kadai or wok.
When the oil is hot, remove the kadai from the heat and add the cumin seeds. When the seeds start to crackle add the crushed garlic and salt, mix well, and toss until the raw garlic smell has gone.
Add the turmeric and chopped chilli and mix well.
Return the pan to the heat and add the puréed spinach. Mix well.
Reduce heat a little, and cook for around ten minutes, folding regularly. The spinach is cooked when the oil separates and rises to the surface.
Remove from heat, place into a bowl and serve.
notes
400g of English spinach is approximately two bunches.
Silverbeet is a good alternative to English spinach.