Cut the cauliflower in small florets of about 1 centimeter length. Peel and cut the potatoes in small cubes of about 1 centimeter length.
Soak the cauliflower florets in a pot of boiling water for 10 minutes. Drain and set aside.
Heat 2 tablespoons of oil in a skillet. Add the cauliflower florets and season then with some salt. Fry them on medium heat for 10 to 15 minutes or until they are almost cooked. Take them out in a bowl and set aside.
Heat oil in a wok and tip in the onion seeds and dry red chillies. Sauté until fragrant.
Then add the potato cubes to the wok. Add the salt, sugar and turmeric powder. Stir fry the potatoes for 15 minutes or until cooked through.
Tip in the fried cauliflower florets and stir fry the potatoes and cauliflowers together on high heat for final 1 minute. Remove from heat.
Sprinkle some chopped fresh coriander leaves and serve as a side with Indian flat breads.
Recipe by Flavor Quotient at http://www.flavorquotient.com/2015/09/indian-spiced-cauliflower-and-potato-stir-fry/