1. Roll a rolling pin on abura-age to smash the white part inside. This process makes it easier to open up the abura-age.

2. Put abura-age into an ovenproof bowl and pour 200ml water. Place a sheet of waxed paper and a small plate on it as a drop lid. Microwave on 600W for 4minutes. (2minutes on 1200W)

3. Drain the oil-dissolved water. Add <A> and 100ml water into the bowl, put a sheet of waxed paper and a small plate. Cover with the edge-open wrap and microwave on 600w for 2 minutes. (1minute on 1200W) Squeeze out abura-age lightly, and open them from the cut sides to make pouches. Turn over the cut sides.

4. Combine amazu with cooked rice and mix (sushi-rice). Add takuan and sesame seeds to sushi- rice and mix. Divide sush- rice into 4 and make long round shapes.

5. Stuff abura-age with sush- rice. Fold the edge of abruta-age over rice.

For how long you should cook with your microwave oven, see Cooking Time vs Wattage Conversion.
For more tips of using Microwave Oven, see Sachiko's Guideline to Microwave Cooking.