Cut the mango into tiny pieces. cook the mango pulp in a heavy-bottomed pan, add 1/2 cup water and cook on low flame for a few minutes until it thickens slightly and cooks well.
Either add kolhapuri jaggery directly or Melt jaggery with a little water, strain it to remove impurities, and add it to the mango pulp. Mix well and simmer until the mixture thickens.
Thin out half tin coconut milk (canned) 1 cup water + 1/2 cup coconut milk
Add 1 cup thinned coconut milk and continue cooking on low flame. Do not boil vigorously. Add the remaining milk and thicken to desired consistency.
Finally, add the thick coconut milk and gently heat through. Do not boil after adding thick coconut milk to avoid curdling.
Add flavor: Sprinkle ginger powder and stir well.
Garnish: In a small pan, heat ghee and fry the coconut pieces and finally cashews . Pour over the payasam. Stir once just before serving.