Place egg whites, sugar, cream of tartar and salt in a metal mixing bowl. (Use the bowl of a stand mixer if you have one.) Place bowl on saucepan, making sure bottom doesn’t touch water.

Chop the chocolate very finely so that you have a pile of dark splinters, and fold them into the cream, along with the liqueur. Now, using brute force, crumble the meringue nests and fold these in ...

Add the heavy cream, confectioners’ sugar and kirsch and beat until the cream forms soft peaks. Turn the meringue so a long side is facing you. Spread the whipped cream over the meringue ...