I never thought of julienning the veggies. It's usually just a way to use leftover bits and pieces.
Coarsely chop an onion and fry it in very little oil, then stir through chopped cooked leftover veggies (everything from potatoes to broccoli, mushrooms and fresh herbs, that said, they're good with shredded meat added too) season with garam masala, salt, etc., and set aside to cool a little while you make the batter.
Gram flour in a bowl, depends how much veg I have left to use up, add a little salt, a little ground turmeric and a shake of mild-ish chilli powder. Stir well and mix to a batter with fresh yoghurt thinned out with cold water. Let the batter sit for a little while so that the peaflour can absorb the liquid. Sometimes needs a little more yoghurt stirred through to get the batter right to mix with the veggies and stay together once the flour has taken up some of the liquid. It's a judgement call.
Combine the two and fry spoonfuls (use two spoons, one to scoop and one to scrape off tidily into the hot oil) Lift out and leave to drain on the oven grill rack.
They're very quick to cook and are usually served straight away. Leftovers store well in the fridge for a couple of days, or can be frozen. They heat up very quickly indeed in the microwave or oven.
They're inclined to be oily, so I prefer them with something plain like basmati rice or simple couscous. They're good with Indian 'temper' mixes spread over them, but chutney or brown sauce does very well
M