3 egg whites
1/2 teaspoon vanilla extract
3/4 cup sugar
3/4 cup crushed chocolate wafers
1/2 cup chopped walnuts
1 cup heavy whipping cream
2 tablespoons confectioners' sugar

In a small bowl, beat egg whites and vanilla on medium speed until soft peaks form. Gradually beat in sugar, 1 tablespoon at a time, on high until stiff glossy peaks form. Gently fold in the wafer crumbs and nuts. Spread into a greased 9-in. pie plate.
Bake at 300 degrees F for 30-40 minutes or until the top appears dry and is lightly browned. Cool on a wire rack.
In another mixing bowl, beat the whipping cream and confectioners' sugar until stiff peaks form. Spread over the pie. Refrigerate for 3-4 hours.