Christmas Eve Chocolate Mousse
["1 1/2 c. crushed chocolate wafer cookies", "1/3 c. melted butter", "1 (8 oz.) pkg. cream cheese, softened", "1/4 c. sugar", "1 tsp. vanilla", "2 beaten egg yolks", "1 (6 oz.) pkg. chocolate chips, melted", "2 egg whites", "1/4 c. sugar", "1 c. whipping cream", "3/4 c. chopped pecans"]
["Crush chocolate wafers.", "Blend with melted butter.", "Press into bottom of 9-inch spring-form pan.", "Bake at 325\u00b0 for 10 minutes. Cool."]
["chocolate wafer cookies", "butter", "cream cheese", "sugar", "vanilla", "egg yolks", "chocolate chips", "egg whites", "sugar", "whipping cream", "pecans"]