Lemon Garlic Baked Cod

Cod on a bed of lemon slices, drizzled with a butter and garlic sauce, baked then briefly broiled.

Two servings, twenty five minutes, and the whole thing happens in one dish.

Lemon slices go underneath

Spread across the bottom of the pan before the fish.

this now & bake later ❤️

They are not garnish. As they heat, the lemon slices release steam and their oils rise up into the fish, which seasons it from below in a way that squeezing juice over the top does not.

They also lift the cod off the base of the pan slightly, so it is not sitting in the liquid that renders out. That means the underside stays firm rather than poaching.

Thin wheels rather than wedges. You want a continuous layer.

Blot the cod dry

With paper towel, until genuinely dry, before it goes on the lemon.

Fish carries a great deal of surface moisture, particularly if it was frozen and thawed. That water has to evaporate before any browning can happen, and in a fifteen minute bake plus a short broil there is not time for both.

A dry surface also lets the butter sauce cling rather than sliding off into the pan.

Stir the sauce, then drizzle

Butter, olive oil, garlic, lemon zest, paprika, salt and pepper combined in a small bowl before it goes anywhere near the fish.

Combining first means every piece of cod gets the same mixture. Adding the components separately would leave garlic in some places and paprika in others.

The butter should be softened rather than melted, or the sauce separates in the bowl with the oil floating on top.

Zest and slices, both

Half a teaspoon of zest in the sauce, plus the whole lemon sliced underneath.

They do different things. Zest carries the aromatic oils, which are what actually smell and taste of lemon, and it survives the oven. The slices contribute steam and a milder background acidity.

Neither replaces the other, which is why the recipe uses both.

Paprika for colour

A quarter teaspoon, which is a small amount and it is doing a specific job.

Cod is white, the sauce is pale, and the lemon underneath is pale yellow. Without something, the finished dish comes out looking washed out no matter how good it tastes.

Paprika turns the butter sauce a warm orange and gives the surface colour under the broiler. Its flavour at a quarter teaspoon is faint, which is the intention.

Sweet paprika rather than smoked here. Smoked would compete with the lemon and garlic rather than sitting behind them.

Fifteen minutes, then broil four or five

At 400F, then under the broiler until the cod flakes easily and the top is golden.

The bake cooks the fish through gently. The broil is purely about colour, since a 400F oven will not brown a pale fish coated in butter.

Watch the broiler stage closely. Four minutes and five minutes look very different, and butter under a broiler goes from golden to burnt quickly.

Cod should reach 145F

Which the recipe does not state, judging instead by whether the fish flakes easily.

Flaking is a reasonable cue and it correlates well with doneness in cod, which is a thick-flaked fish. A thermometer removes the guesswork, particularly since fillets vary in thickness.

A pound cut into four pieces gives fairly thick portions, so if yours are thinner start checking at twelve minutes.

Four tablespoons of butter for two servings

Which is generous, and it is the point of the dish.

Cod is extremely lean, with almost no fat of its own. Left to bake plain it comes out dry and bland, which is why so many baked cod recipes disappoint.

The butter is doing the job the fish cannot do for itself. It bastes the surface as it melts, it carries the garlic and paprika into the flesh, and it pools in the pan as a sauce to spoon over at the end.

The tablespoon of olive oil alongside it raises the smoke point slightly, which matters during the broiler stage.

Why cod specifically

It is meatier than most white fish, which is what makes it suit oven baking.

Thin delicate fish like sole or plaice would overcook in fifteen minutes and fall apart when you lift them. Cod holds together in large flakes and it tolerates the broiler stage without drying.

It is also mild, which is why it takes to butter, lemon and garlic so readily. There is nothing in the fish itself competing with the sauce.

Haddock and pollock behave similarly and substitute directly.

Frozen cod

Which is what most people will be using, since cod is rarely sold fresh inland.

Thaw it fully in the refrigerator overnight rather than cooking from frozen. Cod is thick enough that cooking from frozen leaves the centre underdone while the outside overcooks, unlike a thin fillet.

Then blot it thoroughly, which matters more with thawed fish than with fresh. Thawing releases a considerable amount of water.

Look for fillets that are evenly white without yellowing or dry patches, which indicate freezer burn.

Making it for four

The recipe as written serves two, and it doubles cleanly.

Use a larger pan so the fillets sit in a single layer with the lemon underneath. Crowding them means they steam against each other rather than baking, and the broiler cannot reach the ones in the middle.

Two pounds of cod across a half sheet pan works. The timing does not change, since it depends on the thickness of each fillet rather than the total quantity.

Serving

Parsley and chives over the top, added after cooking so they stay green.

Sauteed asparagus, roasted Brussels sprouts or mashed cauliflower are the suggested partners and all suit it. The dish is paleo as written, which is why the suggestions lean that way.

The lemon slices underneath are edible once softened, though most people leave them.

Spoon the butter from the bottom of the pan over each portion. It has picked up the lemon and the fish juices and it is the best part of the dish.