I wouldn´t worry too much about how many teaspoons, etc. Tamarind paste ( if that´s what you´ve got) is pretty intense. I´d start with 1 tbsp and take it from there; since the paste goes into the initial puree, add 1 tbsp, taste the paste, add another, etc., until you´re happy with the sweet/sour/spicy balance. Just check to make sure your tamarind paste has no added sugar. If it does, you can use it instead of the sugar in the recipe.
There´s only one Indian recipe I can think of where the tamarind really comes through as sour, and that´s katte baingan - Himalayan sweet/sour aubergines. Like I suggest above, start with 1 tbsp then increase the amount to taste. Your recipe serves 4, so if you´re making it just for you, you´ll only need 1 oz.
There´s only one Indian recipe I can think of where the tamarind really comes through as sour, and that´s katte baingan - Himalayan sweet/sour aubergines. Like I suggest above, start with 1 tbsp then increase the amount to taste. Your recipe serves 4, so if you´re making it just for you, you´ll only need 1 oz.