Place oven rack in center of oven. Preheat oven to 350. Oil and flour bundt pan.
Mix together cake mix, pudding, sour cream, oil, and eggs. Mix for 2 minutes. Fold in mini chocolate chips. The mixture will be quite thick. Pour batter into prepared bundt pan.
Bake for 50-60 minutes or until cake bounces bake when pressed lightly. Cool for 20 minutes. Lightly run a knife around edges, until cake pulls away from sides of pan. Invert cake onto serving plate.
Glaze: Heat cream in small double broiler until it just get bubbly. Mix chocolate chips, stir untill melted and smooth. Simmer for one minute, until thickened. Pour glaze over cake, letting it flow down the sides. Cool cake for at least 20 minutes or until set. Lightly dust cake with powdered sugar. Store any left over cake in refrigerator.