2/3 c. butter, room temperature
2/3 c. granulated sugar
1/3 c. packed dark brown sugar
1 lg. egg
1 tsp. vanilla
2 (1 oz.) sqs. unsweetened chocolate, melted
1 1/2 c. all-purpose flour
1 1/2 (3 oz.) bars chopped Swiss dark chocolate
1 (3 oz.) bar chopped white chocolate

Heat oven to 325 degrees. Lightly grease 2 (17 x 14 inch) cookie sheets. In large bowl of electric mixer, beat butter, sugar, eggs, vanilla, and melted chocolate at medium high speed until fluffy. Reduce mixer speed to low and add flour. Increase mixer speed gradually and beat just until blended. Stir in dark and white chocolate. Drop heaping tablespoon dough 2 1/2 inches apart onto prepared cookie sheets. Bake 1 sheet at a time 17 minutes or until top looks dry. Cool on sheet on wire rack 5 minutes. Remove to rack to cool completely.