Mix rice flour, wheat flour and cornflour, add water in 2 times and stir evenly, then add vegetable oil and mix thoroughly.
Place the wire rack on the metal tray and put the non-stick baking pan on top. Put into Panasonic Steam Oven NU-SC180W lower and upper level. Select "Steam" mode, adjust the time to 5 minuts to heat up the cavity and baking pan to prevent batter from settling.
After that, take out the metal tray and the baking pan (Please be aware of hot steam when opeing the door and wear oven gloves). Close the door immediately to keep the temperature inside the cavity.
Apply some vegetable oil on the baking pans, mix the batter again and pour into the baking pan. Sprinkle with some Sakura shrimps and scallion. Repeat the same steps for the second tray.
Put the baking pans and metal trays back to the Steam Oven, select "Steam" mode and set for 6 minutes.
Let it cool for 1 minutes after finish, roll up the rice roll.
Serve with sweet soy sauce and white sesame.
Tips
The recipe is designed based on Panasonic Steam Oven NU-SC180W. The above recipe is for reference only. Please adjust the amount of ingredients and cooking time according to personal preferences and actual conditions.