Add potatoes to boiling water and cook 5 minutes - then add cauliflower florets for another 5 minutes. Drain, setting aside 250 ml of the water.
To frypan, add 30 ml of Olive oil - and once it is hot - add the blanched veggies and fry until they are a little brown around the edges. Remove from frypan to a plate and set aside.
To the frypan - add 15 ml of Olive oil and fry the onions until they are transparent. Add the crushed ginger, garlic, and half of sliced Jalapeno (if using). Stir to combine, then add the Tomato and a pinch of salt. Stir then cover for 5 minutes.
Put this mixture into a blender with 100 ml water and blend until smooth
In a mixing bowl - make spice paste by mixing turmeric, chilli, coriander, powders with 50 ml of water
In a clean frypan, heat 15 ml of olive oil then add cumin seeds. Once the seeds are fragrant, turn heat to low and add the spice paste. Stir then add the blended paste and a pinch or two of sugar.Rinse the blender jar with a little water - add this to pan as well. Cover, and cook on medium heat for 5 minutes.
Now add cauliflower and potatoes and other half Jalapeno. Add salt to taste. Stir to combine and add the reserved water from blanching. Bring to the boil , then add the garam masala. Stir, cover on medium heat for 10 minutes.
After about 7 - 8 minutes, check if the potatoes are soft. If so, add the thrawed frozen peas (if you are using fresh peas, add them with the potatoes).
When you are happy it is ready, serve with rice or roti - adding the cilantro garnish to each serving.Ehjoy.