Fiquei curiosa e fui investigar.
Encontrei esta receita, que pelo que percebi não é a original, mas é prima. Está em ingles.
Concorde (Chocolate Meringue Cake Filled with Chocolate Mousse)
Yield: 6 servings
135g (4.5 oz) icing sugar
90ml (6 tbsp) cocoa powder
5 Egg whites
150g (5 oz) caster sugar
A Few drops vanilla essence
100g (3.5 oz) plain chocolate, cut into small pieces
60 g (2 oz) butter
60g (2 oz) sugar
2 Egg yolks
4 Egg whites
For the Chocolate Meringue:
Preheat the oven to 110 C (225 F). Cover 2 baking sheets with baking parchment. Cut an oval pattern, about 20 cm (8 inches) long and 12.5 cm (5 inches) wide, from a thin piece of cardboard. Use the pattern to trace 2 ovals on 1 baking sheet and 1 oval on the second. Leave one-half of the second baking sheet free for piping strips of meringue.
Sift together the icing sugar and the cocoa powder. Beat the egg whites with a whisk or electric mixer until soft peaks form. Gradually beat in the caster sugar and then continue beating until stiff peaks form and the meringue is glossy and smooth. Fold in the icing sugar, cocoa and vanilla with a metal spoon. Fit a piping bag with the large plain tube and fill with the meringue. Pipe the meringue to fill each traced oval, starting in the centre and working outwards in a spiral. Fit another piping bag with the Medium plain tube and fill with the remaining meringue. Pipe long thin strips on the second baking sheet, leaving about 2.5 cm (1 inch) in between each. Bake for at least 2 hours, until the meringue is crisp and thoroughly dry. Cool overnight and carefully peel off the paper. Trim the ovals to equal sizes.
For the Chocolate Mousse:
Bring 5-7.5 cm (2-3 inches) of water to simmering point in a saucepan. Combine the chocolate, butter and 45 ml (3 tbsp) of the sugar in a heatproof bowl and set it over the simmering water Leave to stand, without stirring, until the chocolate has completely melted. Remove from the heat and stir in the egg yolks with a spoon. Beat the egg whites with a whisk or electric mixer until stiff peaks form. Gradually beat in the remaining sugar and continue beating until stiff peaks form and the meringue is glossy and smooth. Whisk about one-third of the egg whites into the chocolate mixture. Gently fold this into the remaining egg whites with a metal spoon.
To assemble the cake:
Spread a thin layer of mousse over 1 meringue oval with a palette knife. Place a second oval on top and spread it with a thin layer of mousse. Top with the third meringue and spread the top and sides of the cake with the remaining mousse. Carefully cut the meringue strips into 2.5 cm (1 inch) lengths with a serrated knife and use them to decorate the top and sides of the cake. (I piled the meringue rods over the top of the cake) Cover and refrigerate for 2 hours before serving. Sift icing sugar over the top just before serving.
Original recipe before added modifications from Le Cordon Blue (1991).
MUIIIIIIIIIIIIIto interessante. Espero que o meu marido não veja isto. Parece dificil de fazer