Northern Y Bone removal has always been a mystery to me but not now.
Try frying any fish dipped in dry pizza dough mix like comes in the packets. Add an egg and water if you like a heavier batter. Cut fillet into 2" pieces and fry in 1/2" of oil. I use an electric stove set on 7 and fry till golden brown.
https://www.youtube.com/watch?v=4lB9hetEFG0