3 egg whites
1 cup sugar
3/4 cup ground hazelnuts
1 1/4 cups chopped hazelnuts
Cocoa for sprinkling, optional
Beat egg whites until frothy. Add sugar, 2 tablespoons at a time beating well after each addition, until all sugar is incorporated and stiff peaks form. Fold nuts into mixture. Line baking sheet with parchment paper. Form cookies using 2 teaspoons. Bake in preheated 275-degree oven for 30 minutes. Cocoa may be sprinkled on cookies after baking.
Source: Mickey Sokobin