Description
I whipped this up when I was confronted with the leftovers of an excellent-but-too-large haddock. It's a simple dish, homey and satisfying.
I started with the fish flaked into a basic white sauce seasoned with dried dill and chervil, but then I thickened the sauce up with an egg yolk (see Mayonnaise for why that's a good idea) and then proceeded to top it with mashed potatoes and baked it.
(See Notes for a confession.)