Wash and cut the taro in pieces, put in the middle shelf position of Panasonic "Inverter" Steam & Grill Microwave Oven NN-CS89LB and select “Steam 1 (Maximum)” and set for 30 mins. (Fill the water tank before using the steam function);
Add sugar, whipping cream and mix into taro paste, store it in the refrigerator for later use;
Mix vegetable oil, milk and salt with a hand mixer, then add egg yolk and mix well;
Sift in low-gluten flour and mix gently, add vanilla essence and mix well to form egg batter;
Preheat the Oven by selecting “Convection” mode at 160℃;
Beat the egg white with hand mixer, add in sugar in three batches until it becomes a firm peak;
Mix 1/3 of the egg white mixture into the batter and fold it in gently;
Mix the batter into the remaining egg white mixture and fold it in again;
Put baking sheet on the bottom and four sides of the baking tray and fix it with clips;
Pour the egg batter evenly into the baking tray, tap 2-3 times to eliminate bubbles and remove the clips;
After preheat, put the Grill Tray into the middle shelf position of the Oven and set for 16 mins.;
Take it out when finished, spread baking sheets on the cake surface and support it with a wooden board/cutting board; Turn the cake upside down carefully and tear off the bottom baking sheet;
Spread baking sheets on the cake surface again and support it with a wooden board/cutting board; Turn the cake upside down carefully and tear off the top baking sheet;
Cut both sides of the cake and evenly spread the taro paste over 1/3 of the cake surface;
With the aid of a wooden rolling pin and a plastic scraper, roll the cake into a log shape;
It tastes better after putting it in the refrigerator for 3 hours.
Tips
The recipe is designed based on Panasonic "Inverter" Steam & Grill Microwave Oven NN-CS89LB. The above recipe is for reference only. Please adjust the amount of ingredients and cooking time according to personal preferences and actual conditions.