Combine first 4 ingredients in heavy small saucepan. Stir over low heat until butter melts and sugar dissolves, about 3 minutes. Increase heat and boil 2 minutes. Cool completely.
Preheat oven to 350°F (180°C). Grease and flour a 10-cup bundt pan. Using electric mixer, beat cake mix and next 8 ingredients until well blended, about 3 minutes. Stir in chocolate chips. Pour batter into prepared pan. Bake until toothpick inserted near center comes out with a few moist crumbs attached, about 1 hour. Immediately spoon sugar and butter mixture over cake in pan. Let cake stand 30 minutes.
Turn cake out onto platter and cool completely. Sprinkle top with confectioners' sugar and serve.
Makes 10 servings.
Photograph taken by Diana Baker Woodall© 2005
Date: January 5, 2005