Get cracking on the veg prep. Slice potatoes, portion cauliflower and broccoli, and tear apart mushrooms.
Pour oil into pot and slowly bring temp to 350.
Get two bowls. In bowl one mix together flour, corn starch, baking powder, and salt. In second bowl scramble one egg and pour in ice water. Now mix in dry ingredients with wet and mix until the batter is smooth.
Once oil is ready, place prepped veg and batter prepped by the fryer. Take a vegetable portion, submerge into batter, and then lay into the oil. Fry until golden brown, approx 5 minutes. Once brown, takeout of the fryer and lay on cooling rack or let rest on paper towel. Season with salt.
In small serving bowl mix together soy sauce and rice wine.
Put all vegetables onto serving plate. Serve with dipping sauce. Enjoy!!!