This is a recipe video for a chewy and moist chocolate mochi steamed bun that can be easily made in just 4 minutes in the microwave. After heating mochi rice cakes, milk, and sugar in the microwave until soft, add an egg, pancake mix, and pure cocoa powder and mix well. Place the mixture in a heat-resistant container lined with parchment paper and heat again in the microwave to complete a delicious, foolproof chocolate steamed bun. Even if it cools and hardens, you can reheat it covered with plastic wrap to enjoy the same texture as when it was freshly made.