What's the best way to keep pakoras crisp until being served? I am planning to make pakoras for a party and will not have time to make it as the guests arrive, which is why I would like to make it a few hours ahead and serve upon arrival. Will keeping them in a warm oven help? If so, at what temperature?
Make them and wrap each batch in aluminium foil. Warm them in an oven at 140 deg C for about 20 min to an hour before serving, - same for onion bajhis. They will get too crispy if not wrapped. Don't drain the oil off before wrapping.
If I'm not serving them right away, I like to double-fry them to make the pakoras nice and crispy. I'd then follow James Barrie's suggestion and keep them in the oven, wrapped in aluminum foil - might bump up the heat to around 150 deg C though.