Nordic baked cod with dill-mustard sauce
September 19, 2026 · 3 min read
The sweet-and-sharp mustard sauce that Scandinavians spoon over cured salmon is too good to keep for special occasions, and it works just as well on a plain baked fillet. Cod bakes in about fifteen minutes to a clean, flaky white, and the cold dill-mustard sauce goes on top at the table — no last-minute pan sauce, no timing to juggle. It's a weeknight version of a smörgåsbord classic.
Cod holds up to the strong sauce without disappearing under it, and the whole plate stays light.
Ingredients
- 4 cod fillets (about 6 oz each)
- 1 tablespoon rapeseed (canola) oil
- Salt, to taste
- White pepper, to taste
- 1/2 cup crème fraîche (or sour cream)
- 2 tablespoons Dijon mustard
- 1 tablespoon whole-grain mustard
- 1 teaspoon honey
- 3 tablespoons chopped fresh dill
- 1 tablespoon lemon juice
- Lemon wedges, to serve
Steps
- Heat the oven to 400°F (200°C). Pat the cod dry, set it in an oiled baking dish, season with salt and white pepper, and brush with the rapeseed oil.
- Bake 12 to 15 minutes, until the fish flakes at the thickest part and turns opaque.
- Meanwhile, stir the crème fraîche, Dijon, whole-grain mustard, honey, dill, and lemon juice together in a bowl and season to taste.
- Spoon the dill-mustard sauce over the cod, or serve it alongside, with lemon wedges.
How it comes together
Makes 4 servings — read left to right; each column combines what's behind it.
PrepPat the cod thoroughly dry before it goes in the dish — surface water steams the fish instead of letting it firm up in the oven.
| 4 cod filletsesabout 6 oz each | Season and bake the cod | ||
| 1 tbsp · 14 g rapeseed oil | |||
| saltto taste | |||
| white pepperto taste | |||
| ½ cup · 120 g crème fraîcheor sour cream | Mix the dill-mustard sauce | ||
| 2 tbsp · 30 g Dijon mustard | |||
| 1 tbsp · 15 g whole-grain mustard | |||
| 1 tsp · 7 g honey | |||
| 3 tbsp fresh dillchopped | |||
| 1 tbsp · 15 g lemon juice | |||
| lemon wedgesto serve | Sauce and serve |
Scaling adjusts quantities only — cooking times and pan sizes may need judgment. Grams are rounded for the kitchen.
Swaps
Any firm white fish stands in for the cod — haddock, pollock, or hake all bake the same way. Salmon or trout works too if you want a richer fillet, and the sauce is arguably even better on oily fish. Sour cream or thick Greek yogurt replaces the crème fraîche; yogurt makes a tangier, lighter sauce. No fresh dill? A tablespoon of the dried won't have the same lift, so lean on the mustard and lemon instead and add chopped chives for a green note.
Notes
The sauce wants to sit. Made even fifteen minutes ahead, it lets the mustard mellow and the dill infuse, so stir it together first and let it rest in the fridge while the fish bakes. Watch the cod closely toward the end; white fish goes from just-done to dry fast, and it's ready the moment it flakes with gentle pressure. Boiled new potatoes or a pile of roasted root vegetables round it into a full Nordic plate.
Say "baked cod with dill-mustard sauce" to Nordic Diet Companion and it logs the fish and shows how it fits your week's pattern, no measuring required.
FAQ
What is hovmästarsås? It's the Swedish "maître d' sauce" — a sweet mustard-and-dill dressing traditionally served with gravlax. The same sauce works on baked white fish, which is what this recipe does.
Can I use frozen cod? Yes. Thaw it fully in the fridge overnight and pat it very dry before baking, since extra moisture makes the fish steam and turn watery instead of firming up.
How do I know the cod is done? It flakes easily with a fork at the thickest part and turns opaque all the way through. For 6-ounce fillets at 400°F, that's usually 12 to 15 minutes; check thinner tail pieces a couple of minutes early.
Can I make the sauce dairy-free? A plain unsweetened coconut yogurt stands in for the crème fraîche and keeps the tang, though the flavor shifts slightly. The mustard and dill still carry it.
What else can I put the sauce on? It's good on boiled potatoes, over hard-boiled eggs, alongside dill salmon and spinach, or as a dip for cold shrimp — anywhere you'd want a mustard-forward Nordic dressing.