Chocolate Mousse flourless cake

Why I Love This Recipe
We loved this cake so much that on our birthday we were allowed to do withit whatever we wanted (of course we always shared!)
The amount of cake baked has been a source of debate for many years, and now that I make it on my own, I like more of it uncooked than cooked. It can also be simply refrigerated instead of frozen.
Ingredients You'll Need
7 oz semisweet chocolate
1/2 lb unsalted butter
7 eggs separated
3/4 c sugar
1 t vanilla
1/8 t cream of tartar
8 oz heavy whipping cream
Directions
in a small saucepan, melt chocolate and butter
Beat egg yolks and 1/2 c sugar until very light and fluffy
Gradually beat in warm chocolate mixture and butter
In another bowl, beat egg whites and cream of tartar until soft peaks form and add remaining 1/4 c sugar, 1 T at a time,
Continue beating until stiff
Fold egg whites carefully into chocolate mixture
Pour 1/2 of the batter into an ungreased 9”x3” springform pan
Reserve remaining batter
Bake at 325 degrees for 40 minutes
The cake will drop as it cools.
Spread refrigerated batter on top of cake
Whip cream and spread on top of cake.
Freeze for at least 5 hours or overnight.