Sponge sheet

• 1.Warm egg yolk , sugar and beat
  2.Add the sieved cake flour
  3.Add the melted butter and Milk
  4. Panning at the sheet pan and bake 180 degree for 13 min
  

Filling

• 1.Boil the white bean paste, water, starch until thickened
  2. Cool down and add Ceylon tea powder
  3. Spread on the sheet sponge and roll.