Cappuccino Truffles

1. 12 ounce package milk chocolate chips
2. 6 Tbsp butter, cut into 4 equal-sized pieces
3. 3 Tbsp heavy cream
4. 1 1/2 Tbsp espresso or coffee powder
5. cocoa
6. confectioners' sugar

In 2 quart glass container, microwave the first 4 ingredients on high power 1 to 1 1/2 minutes until almost melted; stir until smooth. Freeze for 1 hour or until firm. Shape tablespoons of mixture into balls, Roll in cocoa and confectioners' sugar. Refrigerate until ready to serve.