8 1/2 oz. box chocolate wafers
3/4 c. butter, softened
1 lb. white chocolate
4 (8 oz.) pkg. cream cheese, softened
4 large eggs
1/4 c. sugar
2 tbsp. vanilla extract

Preheat oven to 350°F. Put chocolate wafers in blender & blend until crumbs form. Mix crumbs with 4 Tbsp. butter and press into bottom and about 2 inches up sides of a 10 x 2 1/2 inch spring form pan that has been greased. Set aside. In a heavy saucepan over low heat melt white chocolate until smooth, stirring occasionally. In large bowl with mixer on low speed combine cream cheese and 1/2 c. butter until smooth. Add melted white chocolate, eggs, sugar and vanilla, beat just until smooth. Pour mixture into pan with chocolate crust and bake for 1 hour. Cool on wire rack and refrigerate at least 4 hours before serving.