- dry roast the cumin seeds till they start to burn and turn black. allow to cool and ground to a fine powder. keep aside in a small blender take fistful of mint leaves and coriander leaves. make a smooth puree adding required water. keep aside. now in a large jug, add few ice cubes. grate the ginger now add coriander - mint puree to it. add roasted cumin powder next add some amchur powder followed by black salt. add 2 glass of water and squeeze some lemon juice. now add crushed black pepper powder. give a good mix. transfer to serving glass and drop few ice cubes and serve.