Preheat oven to 35o degrees. Coarsely chop 8 squares (1 package)
chocolate; set aside.
Melt remaining 8 squares of chocolate. Stir in sugar, butter, eggs and vanilla.
Add flour and baking powder.
Stir in reserved chocolate and nuts.
Drop by 1/4 cupfuls onto ungreased cookie sheet. Bake 12-13 minutes or until cookies are pufed and feel set to the touch. Cool on cookie sheet 1 minute, transfer to cooling rack to cool completely.