Heat 1 and 1/2 tbsp oil in a large saucepan. As soon as it's hot, add ½ tsp cumin seeds and as soon as it changes colour, add ¼ tsp turmeric powder and leave to cook for about 3 minutes.
Add the potatoes with salt and mix. add 1½ cups of water, cover and cook until the potatoes are done.
Heat the remaining oil in another pan. Add the cloves, cardamoms, cinnamon, remaining cumin seeds, pepper and onion. Cook until the onion is golden.
Add the ginger/garlic purée, remaining turmeric and chilli powder and cook for 1 minute.
Add the tomato (diced finely) and salt and cook until the tomato is cooked. Add 1/4 cup of water, stir and cook over a low heat for 2 - 3 minutes. Leave to cool.
Then blend the mixture until smooth.
Heat the potatoes again and add the batter with 1/4 cup of water. Mix well. Add the peas and salt. Cook for 2 - 3 minutes or until boiling.
Serve in a bowl and garnish with a little liquid cream and fresh coriander.