This recipe works well with Kirschwasser or simple syrup and with hazelnuts, almonds, pistachios, and pecans.
Method
Chop the nuts coarsely, moisten with the egg whites, and sprinkle with the salt.
Spread the nuts on a sheet pan and roast at 340°F/171.1°C until golden brown. Let cool.
Drizzle the liquor into the tempered couverture to thicken it slightly for piping, and pour the mixture into a parchment piping bag or pastry bag without a tip.