KharkolPata Bata /Ghatkol pata bata/ WildArum Paste is also one of the lost recipe; the ruralBengali people are still preparing this,as it is widely available and grows, in damp areas near the pond or on agricultural land, andabundantly grows in the rainy season.
Clean and wash the Ghatkol leaves; take a pressure cooker,and add the Ghatkol leaves along with 2 cups of water, and cook for 2 minutes,no need to wait for whistle, as we are not going to boil meat or some hardthings.
Let it come to room temperature, then transfer it to ablender jar along with water, green chili and garlic cloves, and make a finepaste
Heat mustard oil in a pan, and add nigella seeds and wholered chili for tempering
As they start spluttering add the kharkol pata paste, andmix them well
Add salt and turmeric leaves, mix them well
Now start stirring continuously until the liquid evaporatescompletely
Transfer it to a serving plate; squeeze a lemon over it, and serve hot with hot piping rice