In 1-quart saucepan,heat whipping cream over medium-high heat until hot but not boiling.Stir in chocolate chips until melted and mixture is smooth.Refrigerate about 1 hour,stirring occasionally,until thick.

Heat oven to 350°F.Spray 18 large muffin cups with baking spray with flour.In large bowl,beat cake mix water,oil and eggs with electric mixer on low speed 30 seconds;beat on medium speed 2 min,scraping bowl constantly

Divide batter evenly among muffin cups.Spoon 1 tablespoon cold chocolate mixture on top of batter in center of each cup.

Bake 18-22 mins.Cool 1 min.Carefully remove from pan;place on cooking parchment paper.Cool 10 mins.

Frost with chocolate frosting.Just before serving,dust with powdered sugar.Serve warm