1. Soak raw mangoes in water overnight.
2. Drain in the morning and let them dry out completely in the sun or spread out on your dining table.
3. Chop the mangoes into 1 inch cubes.
4. Add 1 tsp salt and all of turmeric powder and chilli flakes.
5. Mix thoroughly and let it rest for about 2 hours.
6. Now dry roast 1 tsp each of mustard, fenugreek, cumin, coriander, onion and fennel seeds till they start giving out a pleasant aroma.
7. Allow to cool and then grind coarsely.
8. Rub the spice mixture thoroughly into the mango pieces and pour into dry jar or bottle.
9. Top with 2 tbsp of olive oil (without heating as olive oil is best used without heating).
10. Keep in the sun for about 12 days, stirring every day.

Tip: Those of you living in colder climates can place it on your heat vent or near your heating element.