Name: Cod & Potatoes in Rosemary Cream Sauce Recipe
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 3 tablespoons extra-virgin olive oil (divided); 1 pound Yukon gold potatoes, cut into 1-inch pieces; 2 teaspoons kosher salt (divided); ¼ teaspoon freshly cracked black pepper; 2 tablespoons salted butter; 1 large shallot, chopped; 3 cloves garlic, minced; 1 cup heavy cream; ½ cup chicken or fish stock; 2 sprigs fresh rosemary; 1 teaspoon lemon zest; 2 tablespoons lemon juice (from 1 lemon); 2 teaspoons Dijon mustard; ¼ teaspoon ground cayenne pepper; 2 tablespoons capers, drained; 1 pound cod fillet, cut into 4 pieces; 2 tablespoons minced flat leaf parsley (optional)

Jump to Recipe· 4.3 from 14 reviews

There is something truly special about warming up your kitchen with the elegant flavors of our Cod & Potatoes in Rosemary Cream Sauce Recipe. This dish delivers tender, flaky cod nestled atop golden roasted Yukon potatoes, all swimming in a luscious, herby cream sauce infused with fresh rosemary and bright lemon notes. It has the richness and depth of a restaurant-quality meal but is surprisingly simple to make at home. Trust me, once you make this, it will become a beloved classic you’ll want to serve again and again.

Ingredients You’ll Need

The image shows a collection of fresh ingredients arranged neatly on a white marbled surface. In the center right, three pieces of white fish fillets rest on crumpled white paper. Below them is a white bowl filled with cut yellow potatoes. To the left, various small white and wooden bowls hold finely chopped shallots, lemon zest, black pepper, salt, chicken broth, and garlic. Above the fish, more small white bowls contain mustard, butter, oil, flour, and green capers. Fresh green herbs like parsley and rosemary lie to the far right with a clean and bright look. The scene is well-lit with natural light, giving a fresh and clean feeling. photo taken with an iphone --ar 4:5 --v 7

This Cod & Potatoes in Rosemary Cream Sauce Recipe calls for straightforward ingredients that each play a vital role in crafting the perfect harmony of flavors and textures. From the creamy richness of butter and heavy cream to the fresh aroma of rosemary and the bright zing of lemon, every component matters.

Extra-virgin olive oil, 3 tablespoons: Adds fruitiness and helps crisp the potatoes beautifully.
Yukon gold potatoes, 1 pound, cut into 1-inch pieces: Their creamy texture holds up perfectly to roasting and soaking up sauce.
Kosher salt, 2 teaspoons: Essential for layering flavor and seasoning the fish and potatoes properly.
Freshly cracked black pepper, ¼ teaspoon: Gives a subtle peppery warmth without overpowering.
Salted butter, 2 tablespoons: Adds depth and richness to the rosemary cream sauce.
Large shallot, chopped: Brings gentle sweetness, enhancing the sauce’s complexity.
Garlic cloves, 3 minced: Infuses fragrance and a mild savory punch.
Heavy cream, 1 cup: Creates that silky, indulgent texture in the sauce.
Chicken or fish stock, ½ cup: Deepens flavor and balances the creaminess.
Fresh rosemary sprigs, 2: The star herb that fills this dish with earthy, piney notes.
Lemon zest, 1 teaspoon: Provides fresh brightness to the sauce.
Lemon juice, 2 tablespoons: Adds acidity to cut through the richness and brighten every bite.
Dijon mustard, 2 teaspoons: Brings a subtle tang and complexity to the sauce.
Ground cayenne pepper, ¼ teaspoon: Introduces a gentle heat that lifts all the flavors.
Capers, 2 tablespoons, drained: Adds salty, briny bursts that enhance the fish.
Cod fillet, 1 pound, cut into 4 pieces: The mild, flaky fish is perfect for baking in this cream sauce.
Minced flat leaf parsley, 2 tablespoons (optional): Gives fresh herbal color and a light finishing touch.

How to Make Cod & Potatoes in Rosemary Cream Sauce Recipe

Step 1: Roast the Potatoes

Start by preheating your oven to 450°F with a rack in the center. Grease an 8×8-inch baking dish with a tablespoon of olive oil. Toss your cubed Yukon gold potatoes with another tablespoon of olive oil, teaspoon of kosher salt, and freshly cracked black pepper. Roast them until they are perfectly tender and golden, around 20 to 25 minutes. Roasting the potatoes first ensures they develop a crispy edge and absorb the flavors later on.

Step 2: Prepare the Rosemary Cream Sauce

While the potatoes roast, melt the butter alongside the remaining tablespoon of olive oil in a saucepan over medium heat. Add the chopped shallot and cook until soft and translucent, about 5 minutes. Toss in the minced garlic and give it another minute to release its wonderful aroma. Then pour in the heavy cream and stock, and add your rosemary sprigs, lemon zest, lemon juice, Dijon mustard, cayenne pepper, and capers. Bring the mixture to a simmer over medium-high heat, then lower to medium-low and let it thicken gently for 5 minutes. This sauce is the heart of the dish, rich with herbal and tangy notes that perfectly complement the fish and potatoes.

Step 3: Season and Assemble

Sprinkle salt evenly over the cod fillets to enhance their natural flavor. When the potatoes come out of the oven, nestle the fish pieces right among them in the baking dish. Pour your rosemary cream sauce generously over everything, making sure the sauce seeps around the cod and potatoes. This step is where all the elements start melding together, creating comforting layers of flavor.

Step 4: Bake until Perfect

Return the baking dish to the oven and bake uncovered for another 10 to 15 minutes. The cod will become flaky and tender, absorbing some of the sauce, while the potatoes get even more flavorful. Keep an eye on it to avoid overcooking the fish. Once it’s done, sprinkle the finished dish with minced parsley for a fresh and vibrant finish before serving.

How to Serve Cod & Potatoes in Rosemary Cream Sauce Recipe

A white rectangular baking dish holds four pieces of light pink and white fish fillets placed on top of a layer of golden yellow roasted potato chunks. The potatoes have a slightly crisp texture and some browned edges, filling the bottom of the dish evenly. The fish fillets are thick, moist, and arranged with some space between them, showing the firmer potato pieces underneath. The baking dish rests on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Garnishes

A simple sprinkle of fresh parsley is ideal to brighten and lighten the dish before serving. If you want to elevate it further, consider adding a lemon wedge on the side for an extra zesty kick. The vibrant green parsley ties back to the rosemary and keeps the palette fresh.

Side Dishes

Though this recipe is quite complete on its own, serving it alongside a crisp green salad or steamed seasonal vegetables like asparagus or green beans adds a wonderful contrast in texture and color. A crusty baguette is also perfect for sopping up any leftover cream sauce on the plate!

Creative Ways to Present

For a dinner party, try plating individual portions on warm plates, spooning sauce around the fish and potatoes in a circular motion for a restaurant-style look. Garnish with a rosemary sprig or a few capers on top to echo the flavors. Serving it family-style in the baking dish straight to the table is equally charming and inviting.

Make Ahead and Storage

Storing Leftovers

You can refrigerate leftovers of this Cod & Potatoes in Rosemary Cream Sauce Recipe in an airtight container for up to 3 days. Keep it chilled promptly to ensure freshness. The flavors tend to deepen overnight, making it a delicious next-day meal.

Freezing

Because this dish features cream sauce and delicate fish, freezing is possible but best done with caution. Freeze in a sealed container for up to a month. When thawed, the texture of the potatoes and cod might soften slightly, but the flavors will still be inviting.

Reheating

Reheat gently in the oven at a low temperature (around 325°F) until warmed through, to avoid drying out the fish. Alternatively, microwave on medium power in short bursts, stirring the sauce between intervals. Adding a splash of stock or cream before reheating can help revive the sauce’s creaminess.

FAQs

Can I use other types of fish instead of cod?

Absolutely! While cod’s mild flavor and flaky texture are ideal, you can swap in haddock, halibut, or even salmon. Just adjust the cooking time depending on the thickness and type of fish you choose.

Is there a non-dairy alternative for the cream?

Yes, if you want to avoid dairy, full-fat coconut milk or cashew cream can be used, though the flavor profile will change. They still provide creaminess but with a subtle twist that can work well with the herbs and lemon.

Can I prepare any steps ahead of time?

You can chop the shallots and garlic and prepare the sauce base up to the simmering point the day before. Refrigerate separately, then combine and heat just before assembling and baking.

What is the purpose of capers in this recipe?

Capers add bursts of salty, tangy flavor that contrast beautifully with the rich cream sauce and mild fish. They elevate the dish with subtle complexity.

How do I know when the fish is perfectly cooked?

Look for the cod to become opaque and flake easily with a fork. It should still be moist and tender, not dry or rubbery. Baking for 10-15 minutes after adding it to the potatoes usually does the trick.

Final Thoughts

There you have it! This Cod & Potatoes in Rosemary Cream Sauce Recipe is a perfect blend of elegance and comfort, ideal for special dinners or a cozy family meal. The way the creamy rosemary sauce brings together golden roasted potatoes and flaky cod is just magical. I encourage you to give this recipe a try—it’s a guaranteed crowd-pleaser that’s surprisingly easy to prepare and impossible not to love.

Cod & Potatoes in Rosemary Cream Sauce Recipe

Ingredients You’ll Need