There is no one standard Brunsli recipe. Historically, the most luxurious and expensive part of the cookie was the ground nuts. It was only during lean times that the nuts were replaced with flour. There is debate over which nuts to use, whether almonds, hazelnuts, or even walnuts. Some recipes call for grated or melted chocolate, while others depend on cocoa (and some use both). Finally, some recipes suggest the cookies are baked low in the oven and some forego baking completely and just leave them out to dry.