Heat your grill on high and when it is hot, place the tomatillos, onions and jalapeno over direct heat.
Grill them until they are softened and charred, around 5-7 minutes. The tomatillos will cook faster than the onion bulbs, so remove those first as they become soft and juicy.
Place the tomatillos and the spring onions in a food processor or blender and pulse.
Slice the jalapeno in half and remove the seeds and add the jalapeno. Add half a bunch of cilantro and a pinch of salt.
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