Take all the ingredients of thandai masala except milk powder, rock sugar and rose water and dry roast them till the moisture goes away. Allow them to cool down then grind it to a fine powder. Now add milk powder and grind again and take it out in a bowl. Crush the rock sugar in pieces to make it easy to grind them make a fine powder of it in mixer grinder and keep it in the same bowl. Mix them well and thandai masala is ready. Keep it in air tight container and put it in the refrigerator.

For lassi in a mixer grinder add yoghurt, thandai powder and sweetener and blend them till it gets smooth and bit bloomy. Pour it in your serving glasses. You can serve as it is but I will add a drop of different organic food colour in each serving then serve. Simply add the green,blue, orange and pink colour in each glaas mix well to get a perfect colour. Garnish it with some chopped almonds and you are ready to serve.