Baker's One Bowl Chocolate Bliss Cookies

Prep: 15 min./Bake: 13 min./Makes: 2-1/2 doz. cookies or 30 servings, 1 cookie each 2 pkg. (8 sq. each) BAKER'S Semi-Sweet Baking Chocolate, divided 1/4 c. firmly packed brown sugar 1/4 c. (1/2 stick) butter, slightly softened 2 eggs 1 tsp. vanilla 1/2 c. flour 1/4 tsp. CALUMET Baking Powder 2 c. chopped PLANTER'S Walnuts Preheat oven to 350 degrees F. Coarsely chop 8 chocolate squares; set aside. Microwave remaining 8 chocolate squares in large microwaveable bowl on HIGH 2 minutes, stirring after 1 minute. Stir until completely melted. Add sugar, butter, eggs and vanilla; stir until well blended. Add flour and baking powder; mix well. Stir in chopped chocolate and walnuts. Drop rounded tablespoonfuls of dough, 2" apart, onto ungreased baking sheets. Bake 12 - 13 minutes or until cookies are puffed and shiny. Cool 1 minute; move cookies to wire racks. Cool completely.