Lemon Pickle Soak 1 whole lemon in salt for one day in sunlight. The next day cut it into small pieces. Season: Heat 4 tablespoons of canola oil. Add 1 teaspoon of mustard. When the mustard splutters Add 1/2 teaspoon of turmeric. A pinch of fenugreek A pinch of asafetida Add the chopped lemon pieces, cover and cook for 15 minutes or Until the lemon is cooked.