Combine the milk and chocolate morsels in the Small Micro-Cooker®. Microwave on HIGH for 3 minutes; whisk until thoroughly blended using a Stainless Steel Whisk. Add powdered drink mix; whisk until combined.
Microwave on HIGH for 2-2½ minutes or until the mixture is hot. Pour the hot chocolate into mugs; top each serving with some miniature marshmallows, if desired. Serve hot.
