Preheat the oven to 140 degree. Line a baking tray with greaseproof paper and keep aside. Pour the egg whites to a clean bowl. (Please note that the bowl should be completely clean and grease free, for successful whipping). Add some of the sugar to this and start whipping. After sometime add the rest of the sugar and continue to whip on high speed until stiff peaks form. If the mixture doesnt stop from the beater, when it is switched off, the batter is ready. Now slowly fold in the chopped nuts.

Drop one teaspoon each of batter spaced 1-1 1/2 inches apart on prepared baking tray. Bake until crisp outside and still chewy inside, it takes around 35-40 minutes of baking. Transfer sheets to a wire rack and let completely cool. Dust with icing sugar. It can be stored in an airtight container for a few days.