This is a very popular accompaniment in North India. Puréed spinach is combined with yogurt spiced with mineral-rich black salt. The strong-smelling salt is an acquired taste; you can use regular salt if you wish.
Wash the spinach leaves well. Roughly chop one bunch and put in a microwave-safe bowl. Add ½ teaspoon salt and cook in a microwave oven on high power for 1½ minutes. Alternatively, you can boil 2cups (400