Step 1

For the Cake:Preheat oven to 350F (175C).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.

Step 2

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

Step 3

For the Icing

Step 4

Place the chocolate and rum or coffee in the small pan, cover, and set in the larger pan of almost simmering water.

Step 5

Remove pans from heat and let chocolate melt for 5 minutes or so, until perfectly smooth. Lift chocolate pan out of the hot water, and beat in the butter a tablespoon at a time. Then beat over the ice and water until chocolate mixture has cooled to spreading consistency. At once spread it over your cake with spatula or knife, and press a design of almonds over the icing.