Line a cutting board with paper towel and lay the fish fillet on top. Lay another paper towel on top of the fish. Gently pat to absorb moisture from the fish.
Cut fish into 2½" square. sprinkle salt on each side and rub gently with finger.
Sprinkle with black pepper on one side. Set aside.
Wisk the eggs. Add in saki and wisk again.
Measure the flour and set aside.
Heat pan to medium high and add oil to pan.
Coat each fish: first the flour dip then the egg wash. Add the battered fish into the pan.
Cook about 3 min on each side or until golden brown.