Heat the clarified butter, add the cumin seeds.
When it splutters, add the potatoes and stir-fry.
When the potatoes become light brown, add salt, chilli powder and sugar and continue to stir-fry till well blended.
Remove from heat, add lemon juice and serve.
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Key Ingredients: potatoes, clarified butter, cumin seeds, rock salt, sugar, lemon juice, tamarind, red chilli