- Transfer bottle gourd pieces, onion and green chillies to the pressure cooker. Add turmeric powder and mix. In a separate bowl, add tamarind, red chilli powder & tomato pieces. Place this bowl on top of the bottle gourd pieces. Close the lid of the pressure cooker and cook for 2-3 whistles over high heat. Turn off the heat. Open the lid once the pressure subsides. Mash up everything together till you get the desired consistency. Add required salt and a little jaggery. Bring it to a boil & garnish with coriander. Tempering: Heat ghee in a small pan over medium heat and add garlic. Once garlic starts to turn light brown, add red chillies, mustard seeds and cumin seeds. When mustard seeds splutter, add a pinch of asafoetida. Now turn off the heat and add curry leaves. Transfer the tempering to the curry and mix.