4 sq. unsweetened chocolate (1 oz. each)
2 c. (12 oz.) semi-sweet chocolate chips, divided
1/3 c. butter
1 c. sugar
3 eggs
1 1/2 tsp. vanilla extract
1/2 c. all-purpose flour
2 tbsp. baking chocolate cocoa
1/4 tsp. baking powder
1/4 tsp. salt
confectioners sugar

In microwave or double boiler, melt unsweetened chocolate, 1 cup of chocolate chips and butter; cool 10 minutes. In other bowl, beat sugar and eggs for 2 minutes. Beat in vanilla and chocolate mixture. Combine flour, cocoa, baking powder and salt and beat into mixture. Stir in remaining chocolate chips. Cover and chill 3 hours. Remove 1 cup dough and with lightly floured hands roll into 1-inch balls. Place on ungreased cookie sheet and bake at 350°F for 10 to 12 minutes or until slightly puffed. Cool 3 to 4 minutes and transfer to wire rack. Dust with powdered sugar.