For the Cake:
4 ounces or squares semisweet chocolate melted with 2 Tb rum or coffee
1/4 lb. or 1 stick softened butter
2/3 cup granulated sugar
3 egg yolks
3 egg whites
Pinch of salt
1 Tb granulated sugar
2/3 cup pulverized almonds
1/4 tsp almond extract
1/2 cup cake flour (scooped and leveled) turned into a sifter
A round cake pan 8 inches in diameter and 1-1/2 inches deep
A 3-quart mixing bowl
A wooden spoon or an electric beater
A rubber spatula
A cake rack
A small covered pan
A larger pan of almost simmering water
A wooden spoon
A bowl with a tray of ice cubes and water to cover them
A small flexible-blade metal spatula or a table knife
For the Cake:
Preheat oven to 350°F (175°C).
Butter and flour the cake pan. Set the chocolate and rum or coffee in a small pan, cover, and place (off heat) in a larger pan of almost simmering water; let melt while you proceed with the recipe. Measure out the rest of the ingredients. Cream the butter and sugar together for several minutes until they form a pale yellow, fluffy mixture.
Beat in the egg yolks until well blended.
Beat the egg whites and salt in a separate bowl until soft peaks are formed; sprinkle on the sugar and beat until stiff peaks are formed.
With a rubber spatula, blend the melted chocolate into the butter and sugar mixture, then stir in almonds, and almond extract. Immediately stir one fourth of the beaten egg whites to lighten the batter. Delicately fold in a third of the remaining whites and when partially blended, sift on one third of the flour and continue folding. Alternate rapidly with more egg whites and more flour until all egg whites and flour are incorporated.
Turn the batter into the cake pan, pushing the batter up to its rim with a rubber spatula. Bake in middle level of preheated oven for about 25 minutes. Cake is done when it has puffed, and 2-1/2 to 3 inches around the circumference are set so that a needle plunged into that area comes out clean; the center should move slightly if the pan is shaken, and a needle comes out oily.
Allow cake to cool in the pan for 10 minutes. Run knife around the edge of the pan, and reverse cake on the rack. Allow it to cool for an hour or two; it must be thoroughly cold if it is to be iced.
Bavarian Cream Filling: http://www.juliasrecipecollector.com/pdf/Bavarois_au_Chocolat.pdf