Chocolate Mousse Cake

I am pretty sure that this was both my sister's and my favorite cake growing up.  We always requested it.  My mom always felt uneasy about serving it due to the raw eggs.  Make sure to take out of freezer and let thaw a bit before serving.  It is divine!

Chocolate Mousse Cake

Mix 1 1/2 cups chocolate wafers with 1/3 cup melted butter.
Press into springform pan.
Bake at 325 for 10 minutes.

Separate 2 eggs. Beat whites until soft peaks form.
Beat in less than 1/4 cup sugar.

In another bowl, beat and mix 8 oz softened cream cheese.
Less than 1/4 cup sugar.
1 teaspoon vanilla.
Stir in 2 egg yolks.

Melt 6 oz chocolate chips in double boiler and add to cheese mixture.
Fold in egg whites.

Whip 1 cup heavy cream in cold bowl with cold beaters.
Add cream to mixture.
Fold in 3/4 cups chopped walnuts.
Add to springform, smooth, and freeze.