https://www.okonomikitchen.com/yuba-katsu/

Ingredients

  1 package of frozen yuba (4 pieces total)
  1 tbsp soy sauce (15ml)
  1 garlic clove, minced (5g)
  1 tsp vegan bouillon powder (3g)
  1 1/2 tbsp cake flour (or all purpose flour // 22g)
  1/4 + 2 tbsp flour (45g)
  1/4 – 1/3 cup water (70ml)
  1/2 cup Panko (40g)
  oil for frying

Instructions

  Into a shallow dish add water, soy sauce, garlic clove and bouillon powder and mix to combine. Place the yuba pieces inside, cover and allow it to sit for 15 minutes (or overnight). 
  Add panko breadcrumbs to a shallow dish. Add the cake flour and water to another shallow dish and mix to make the dredge. 
  Remove yuba from the marinade and let excess liquid drip off. Place on a cutting board and then open the top and bottom folds. Sprinkle a bit of flour and then layer the yuba (as thick as you like, I used two pieces per cutlet).
  Add oil to a pot / deep pan (you can either shallow fry or deep fry). 
  Dip the yuba into the dredge and then coat with panko breadcrumbs. Fry on both sides until golden brown (about 1 1/2 minutes on each side).
  Place on a wire rack to allow excess oil to drop off. Serve with shredded cabbage, fresh vegetables and tonkatsu sauce. Enjoy!