Allow the cookie crust dough to reach room temperature for 30 minutes.
Divide the dough into 25-gram portions and roll each into a ball.
Remove the mochi from the fridge. Knead for 1-2 minutes for it to soften. Divide the mochi filling into 5-gram portions and roll each into a ball.
Divide the matcha custard filling into 20-gram portions and roll each into a ball.
Flatten the matcha custard dough, place a piece of mochi in the center, seal it, and roll it into a ball. Repeat for the remaining fillings.
Flatten the cookie crust dough into a disk shape.
Wrap the filling with the cookie crust dough, sealing the edges securely.
Lightly coat it with all-purpose flour, shaking off excess. Sprinkle flour onto the mooncake mold.
Place the filled dough into the mold to create a pattern.
Air fry at 290°F for 7 minutes. Allow it to cool in the basket before transferring to an airtight container. Ready to serve.