Welcome to Gaia! ::

Ingredients:
7oz 70% bittersweet chocolate, finely chopped
14 tbsp unsalted butter, cutt into chunks
1 cup sugar, divide into 2/3 and 1/3 cup
5 large egges, room temperature, separated
3 tbsp cake flour
1/4 tsp salt
Powdered sugar and cocoa powder for decorating (or whipped cream is good too)

preheat oven to 350
line bottom of 9" round cake pan with parchment paper (we found it at Kroger)
Melt chocolate and butter in double boiler or bowl that fits snugly over
simmering water. when the two are almost melted, remove from the heat and
whisk together. Cool slightly.
Whisk in 2/3 cup of sugar, egg yolks and then flour and salt.
Put egg whites in the bowl of a stand mixer. Beat them with the whisk at
medium speed until they start to foam. Add 1/3 of the second third of the 1/3
cup of sugar and beat whites until they become opaque, then add rest of the
sugar. When the whites start to increase in volume and the whisk leaves traces
in them, add the last of the sugar and turn mixer to high. Beat until the
whites form soft peaks, but still look wet.
Use a spatula to fold 1/3 of the whites into the chocolate mixture, then fold
in the rest.
Pour batter into pan and bake 35-40 minutes (until a skewer inserted into
center comes out clean or with a few crumbs).
Cool on rack. Unmold by running atable knife around the edge and invert cake
into serving dish. Peel off parchment paper, decorate to your liking.