1 1/2 lb. skinless filets of cod
1/4 C. butter
1/4 C. flour
1 1/2 C. milk
1 C. cheddar cheese

Scones:
1/2 C. cheddar cheese
1/4 C. butter
1 t. baking powder
pinch salt
1 1/2 C. flour
milk
1 egg yolk

Place cod filets in the bottom of a round oven dish.

Make a cheese sauce with butter and flour,  milk and grated cheese. Cool slightly while you make the scone dough. Pour over fish.

Then make scone dough:
Rub butter into flour with baking powder, and pinch of salt. Add 1/2 of the grated cheese. Drop 1 egg yolk into the mixture and add enough milk to make a workable dough.

Roll out to a thickness of 1/2 inch and cut into small rounds with a scone cutter.