Cut ½ kg potatoes and ½ kg cauliflower. Sauté it in butter then blend 250 gm yogurt and 1 chopped onion together.
Now take the remaining butter in the pan along with 4 tbsp oil. Sauté 2 tsp cumin seeds and 1 tsp mustard seeds in it then add in ½ tsp turmeric, 1 tsp salt and 2 tsp red chili flakes. Add in blended yogurt and onion and cook it for some time.
Then add in cauliflower, potatoes, peas and 6 green chilies. Cook it for 15 minutes on a low flame. In the end close the flame and add in 2 tbsp lemon juice and ½ bunch green coriander. Serve