Tomato Butter Baked Cod – A French Bistro Twist

This is adapted from a recipe by @wishbonekitchen, and it’s become one of my favorite simple dinners. It tastes like something from a little French bistro, with very little effort involved.

Sweet cherry and sungold tomatoes are softened in olive oil with a pinch of sugar, then lightly mashed and finished with butter until the sauce turns glossy. The cod bakes under a spoonful of that sauce until it’s flaky and tender, and the rest of the sauce goes over the top at the table.

With so few ingredients, quality matters. Use the ripest tomatoes you can find and good butter. French butter, if you have it, makes a real difference. A butter lettuce salad with a light vinaigrette is all it needs alongside.

Why this baked cod works

• Softening the tomatoes first concentrates their sweetness.

• Butter stirred in at the end gives the sauce a rich, glossy finish.

• Baking gently keeps the cod moist and tender.

• A pinch of sugar balances the tomatoes’ acidity.

Ingredients for tomato butter cod

• Cod: wild-caught fillets of even thickness. Halibut also works.

• Tomatoes: a mix of cherry and sungold tomatoes gives the best color and sweetness.

• Butter: salted, and French if possible.

Ingredients

• 2 wild-caught cod fillets (about 6 oz / 175 g each)

• 1 tablespoon olive oil

• 2 cups cherry and sungold tomatoes, halved

• 1 teaspoon sugar

• Salt and freshly ground black pepper

• 2 tablespoons salted butter, preferably French

• Fresh basil, tarragon or parsley, to garnish

• Butter lettuce salad with a light vinaigrette, to serve

Method

1. Heat the oven: Heat the oven to 375°F.

2. Soften the tomatoes: Heat the olive oil in a skillet over medium heat. Add the tomatoes with the sugar and a pinch of salt, and cook until softened, about 5 minutes.

3. Make the sauce: Lightly mash the tomatoes with a potato masher, then stir in the butter until melted and glossy.

4. Bake: Season the cod, place it in a baking dish, and spoon some of the sauce over the top. Bake for 12–15 minutes, until flaky and opaque.

5. Serve: Plate the cod with the remaining sauce, scatter with herbs, and serve with the salad. Dinner is served.

Tips for the best baked cod

• Pat the fish dry before seasoning.

• Don’t overcook it. Check at 12 minutes. It should just flake.

• Mash lightly so the sauce keeps some texture.

Substitutions

• Other fish: halibut, sea bass or salmon all work.

• No sungolds? Use all cherry tomatoes.

• Herbs: tarragon gives the most French flavor, but basil and parsley are lovely too.

How to store baked cod
Best eaten fresh. Leftovers keep in the fridge for up to 2 days. Reheat gently, covered, at 275°F.

FAQ
Can I use frozen cod? Yes. Thaw it completely and pat it dry first.
How do I know the fish is done? It turns opaque and flakes easily with a fork.
Can I double it? Yes. Use a larger dish and double the sauce.

What I used
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• Baking dish

• Skillet

• Potato masher

• French butter