As I stood in my kitchen, the fragrant aroma of rosemary and garlic wafting through the air, I felt transported to a cozy seaside café. This is the magic of my Cod and Potatoes in Creamy Rosemary Sauce—a dish that perfectly marries tender cod with buttery Yukon gold potatoes, all enveloped in a luscious cream sauce. Not only is this recipe a simple yet elegant solution for busy weeknights, but it’s also a comforting way to elevate your dinner table experience. With just a handful of ingredients and less than an hour, you can impress family and friends with a delightful homemade meal. Ready to tease your taste buds and savor some coastal charm at home? Let’s dive into the details!

Why is this dish a must-try?
Simplicity at Its Best: With just a few familiar ingredients, this dish can be whipped up quickly, making it ideal for those busy weeknights.
Rich, Creamy Flavor: The combination of heavy cream, garlic, and fresh rosemary transforms ordinary cod and potatoes into a gourmet delight that will have everyone begging for seconds.
Versatile and Customizable: Feel free to add your favorite vegetables or substitute the cod with another fish for a personalized touch.
Comfort Food Appeal: The warm, creamy sauce and tender potatoes make this a dish that evokes the comforting vibes of home-cooked meals, perfect for cozy dinners.
Crowd-Pleasing Dish: This recipe is sure to impress guests, making it a fantastic choice for gatherings or special family dinners!
Cod and Potatoes in Creamy Rosemary Sauce Ingredients
For the Base
- Extra-virgin olive oil – this adds a rich flavor and helps roast the potatoes perfectly.
- Yukon gold potatoes – their buttery texture complements the creamy sauce beautifully.
- Kosher salt – essential for seasoning and enhancing the overall flavors.
- Freshly cracked black pepper – adds a hint of spice to balance the rich creaminess.
For the Sauce
- Salted butter – brings a depth of flavor and creaminess to the rosemary sauce.
- Shallot – its mild sweetness creates a lovely base for the sauce.
- Garlic – infuses the dish with aromatic goodness that elevates the flavor profile.
- Heavy cream – the star of the sauce, providing a luxuriously smooth texture.
- Chicken or fish stock – enhances the dish’s savory notes and adds moisture.
- Fresh rosemary – this herb gives the sauce its aromatic and earthy essence.
- Lemon zest – brightens up the dish and balances the richness of the cream.
- Lemon juice – adds acidity that keeps the flavors lively and fresh.
- Dijon mustard – contributes a subtle tang that enhances the overall flavor.
- Ground cayenne pepper – just a pinch adds a gentle heat for a surprising kick.
- Capers – their briny touch complements the cream beautifully.
For the Main Attraction
- Cod fillet – this flaky fish is the perfect protein to soak up that dreamy sauce.
- Minced flat leaf parsley (optional) – a fresh garnish that adds color and brightness.
This dish of Cod and Potatoes in Creamy Rosemary Sauce is not just a treat for the taste buds, but also a feast for the eyes and a cozy hug on a plate. Enjoy every delightful bite!
Step‑by‑Step Instructions for Cod and Potatoes in Creamy Rosemary Sauce
Step 1: Prepare Your Ingredients
Begin by cutting the Yukon gold potatoes into 1-inch pieces, ensuring even cooking. Chop the shallot and mince the garlic. Lastly, cut the cod fillet into four equal pieces. Having everything ready will streamline the cooking process, allowing the flavors to meld beautifully in your Cod and Potatoes in Creamy Rosemary Sauce.
Step 2: Preheat the Oven
Preheat your oven to 450°F, setting the stage for roasting. While it warms, grease an 8×8-inch baking dish with 1 tablespoon of extra-virgin olive oil. This will create a non-stick surface for the potatoes and cod, allowing everything to roast to golden perfection.
Step 3: Roast the Potatoes
Toss the prepared potatoes with 1 tablespoon of olive oil, followed by 1 teaspoon of kosher salt and freshly cracked black pepper. Spread them out in the greased baking dish and roast in the preheated oven for about 20-25 minutes, or until they are fork-tender and lightly golden. This step begins the flavor development in your Cod and Potatoes in Creamy Rosemary Sauce.
Step 4: Sauté Shallots and Garlic
While the potatoes roast, heat 2 tablespoons of salted butter along with the remaining tablespoon of olive oil in a saucepan over medium heat. Cook the chopped shallot until soft and translucent, which should take about 5 minutes. Add the minced garlic and continue cooking for another minute, stirring until fragrant and golden.
Step 5: Make the Creamy Sauce
Stir in 1 cup of heavy cream and ½ cup of chicken or fish stock into the shallot mixture. Add the two sprigs of fresh rosemary, lemon zest, lemon juice, Dijon mustard, ground cayenne pepper, and capers. Bring this mixture to a gentle simmer, then lower the heat and allow the sauce to thicken for roughly 5 minutes, creating a rich base for your Cod and Potatoes in Creamy Rosemary Sauce.
Step 6: Combine Cod with Potatoes
Once the potatoes are roasted, remove them from the oven and sprinkle the remaining 1 teaspoon of salt over the cod pieces. Nestle the cod among the potatoes in the baking dish and pour the creamy rosemary sauce generously over the top. This combination will ensure the flavors meld beautifully as everything continues cooking.
Step 7: Bake to Perfection
Return the baking dish to the oven and bake uncovered for about 10-15 minutes, or until the cod flakes easily with a fork and turns a lovely opaque white. Keep an eye on it; you want the fish just cooked through, ensuring a tender outcome for your Cod and Potatoes in Creamy Rosemary Sauce.
Step 8: Serve and Enjoy
Once your dish is beautifully baked, remove it from the oven and let it rest for a minute. For a fresh touch, sprinkle with minced flat-leaf parsley if desired. Plate your exquisite Cod and Potatoes in Creamy Rosemary Sauce, and savor the delightful blend of flavors and aromas before serving immediately.

Cod and Potatoes in Creamy Rosemary Sauce Variations
Feel free to get creative and make this recipe your own with these delightful twists!
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Vegetarian: Swap the cod for firm tofu or chickpeas for a plant-based option that’s equally satisfying.
Taste the richness! The creamy sauce pairs beautifully with both of these proteins. -
Spicy Kick: Add diced jalapeños or a sprinkle of red pepper flakes to the sauce for a touch of heat.
If you crave some extra zing, this will elevate your dish to a level of excitement that tingle your taste buds. -
Herb Blend: Experiment by mixing in different fresh herbs such as thyme or dill for an aromatic twist.
Feel free to use whatever you have on hand—the herbs will infuse your sauce with vibrant flavors. -
Crispy Topping: Top the dish with panko breadcrumbs mixed with melted butter for a crunchy finish.
This texture contrast creates an unexpected delight that transforms your meal into a gourmet experience. -
Dairy-Free: Replace heavy cream with coconut milk and use a dairy-free butter alternative for a lighter version.
This swap will lend a slight sweetness while keeping the dish rich and creamy without dairy. -
Extra Veggies: Add seasonal vegetables like zucchini or cherry tomatoes for a colorful and nutritious boost.
Enhancing the dish with vegetables not only adds flavor but also elevates the entire meal to a healthier option. -
Citrus Splash: Incorporate orange zest along with the lemon to give a bright, citrusy note to the sauce.
This variation will create a fresh flavor profile that adds a pleasant surprise with each bite. -
Fish Swap: Replace cod with salmon or halibut for a delicious twist with different textures and flavors.
Each option will provide a unique spin to the creamy sauce while ensuring your meal remains enticing and satisfying.
Make Ahead Options
These Cod and Potatoes in Creamy Rosemary Sauce are perfect for meal prep enthusiasts! You can chop the Yukon gold potatoes, shallot, and garlic up to 24 hours in advance. Store the prepared ingredients in an airtight container in the refrigerator to maintain their freshness. Additionally, the creamy rosemary sauce can be made and refrigerated for up to 3 days—just reheat gently on the stove before combining with the roasted potatoes and cod. When you’re ready to serve, simply follow the final steps of roasting the potatoes, nestling the cod, and baking everything together. This quick prep will save you precious time, allowing you to enjoy a delicious homemade meal even on the busiest nights!
Expert Tips for Cod and Potatoes in Creamy Rosemary Sauce
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Perfect Potato Cut: Ensure the Yukon gold potatoes are cut into even 1-inch pieces for uniform cooking and consistent texture in your Cod and Potatoes in Creamy Rosemary Sauce.
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Watch the Cod: Overcooking the cod can make it tough. Check for flakiness at around 10 minutes to keep it tender and moist.
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Sautéing Aromatics: Sauté the shallots until soft and translucent but don’t burn the garlic. This enhances the depth of flavor in your creamy sauce.
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Balancing Flavors: Adjust the lemon juice and Dijon mustard to taste. If the sauce feels too rich, a splash of lemon brightens up the overall flavor profile beautifully.
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Sauce Consistency: Allow the sauce to thicken slightly on low heat for at least five minutes to ensure it nicely coats the cod and potatoes without being too runny.
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Fresh Garnish: Adding minced flat-leaf parsley offers a fresh and vibrant finish to your dish, enhancing both appearance and flavor of the Cod and Potatoes in Creamy Rosemary Sauce.
How to Store and Freeze Cod and Potatoes in Creamy Rosemary Sauce
Fridge: Store leftovers in an airtight container for up to 3 days. Keep the cod and potatoes separate from the sauce if possible, to maintain texture.
Freezer: For longer storage, freeze the dish in a sealed container for up to 2 months. Note that potatoes may change texture once thawed.
Reheating: Thaw overnight in the fridge before reheating. Gently warm in the oven or on the stovetop until heated through, adding a splash of cream if needed to revive the sauce.
Serving Tip: Always serve the Cod and Potatoes in Creamy Rosemary Sauce hot for the best flavor and experience!
What to Serve with Cod and Potatoes in Creamy Rosemary Sauce
Imagine a table filled with vibrant dishes that perfectly complement the rich flavors of your cod creation, elevating your dining experience to a delightful feast.
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Garlicky Green Beans: Their bright, crisp texture provides a wonderful contrast to the comforting creaminess of the sauce. Quickly sautéed in olive oil, these beans add both color and crunch, making every bite feel garden-fresh.
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Herbed Quinoa: This nutty side dish adds a lightness to balance the creamy sauce, while fresh herbs like parsley or dill sprinkle in extra flavor. It’s a wholesome grain option that absorbs the sauce beautifully.
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Roasted Brussels Sprouts: With their crispy edges and tender centers, these bring a lovely bitterness that cuts through the richness of the cream. Seasoned with balsamic glaze, they enhance the dish with a delightful tang.
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Lemon Garlic Rice: Fluffy rice infused with lemon zest and garlic echoes the citrus notes of the sauce, ensuring each mouthful is bright and zesty. It’s perfect for soaking up that luxurious creamy goodness!
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Crispy Bread: A freshly baked baguette is ideal for mopping up every last drop of the delightful sauce. The warm, chewy texture pairs wonderfully with the smoothness of the cream, making it a must-have!
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Chilled White Wine: A glass of crisp Sauvignon Blanc, with citrus and herbal undertones, harmonizes beautifully with the flavors of the dish, enhancing your overall dining experience.
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Lemon Tart: For dessert, this sweet and zesty option adds a refreshing finale to your meal. Its bright notes contrast perfectly with the richness of the cod, leaving hearts and palates satisfied.

Cod and Potatoes in Creamy Rosemary Sauce Recipe FAQs
How do I choose the right Yukon gold potatoes?
Absolutely! Look for potatoes that are firm, with smooth skin and no dark spots or blemishes. The best Yukon golds will have a slightly yellowish hue and be free from cuts. These characteristics indicate freshness and great flavor for your Cod and Potatoes in Creamy Rosemary Sauce.
What’s the best way to store leftovers?
For the best longevity, store leftovers in an airtight container in the fridge, where they will stay fresh for up to 3 days. If you have any separation between the sauce, cod, and potatoes, it's best stored separately. This will help maintain their textures when you enjoy your meal again!
Can I freeze Cod and Potatoes in Creamy Rosemary Sauce?
Yes, indeed! You can freeze your dish in a sealed container for up to 2 months. Just know that the texture of the potatoes may change slightly upon thawing. To freeze, let the dish cool completely, then portion it and seal tightly before placing it in the freezer.
How do I reheat the frozen dish?
To reheat, it's best to thaw the frozen Cod and Potatoes in Creamy Rosemary Sauce overnight in the fridge. Once thawed, you can gently warm it in the oven or on the stovetop until heated through. Adding a splash of cream during reheating can help bring back its creamy goodness.
Is this recipe suitable for those with fish allergies?
This dish contains cod, which can be a concern for those with fish allergies. If you're cooking for someone with such allergies, I recommend replacing the cod with a firm, non-fish protein like chicken or even tofu for a vegan option. Adjust the cooking time accordingly to ensure thorough cooking.
How can I adjust the spiciness of the dish?
The ground cayenne pepper adds a hint of heat, but you have complete control! If you're sensitive to spice, feel free to omit it altogether. For a milder flavor, reduce the amount to a pinch. The creamy sauce will maintain its deliciousness without it, ensuring that everyone at your table enjoys this indulgent Cod and Potatoes in Creamy Rosemary Sauce.

Indulgent Cod and Potatoes in Creamy Rosemary Sauce Delight
Ingredients
Equipment
Method
- Begin by cutting the Yukon gold potatoes into 1-inch pieces, ensuring even cooking. Chop the shallot and mince the garlic. Lastly, cut the cod fillet into four equal pieces.
- Preheat your oven to 450°F, setting the stage for roasting. Grease an 8×8-inch baking dish with 1 tablespoon of extra-virgin olive oil.
- Toss the prepared potatoes with 1 tablespoon of olive oil, 1 teaspoon of kosher salt, and freshly cracked black pepper. Roast for about 20-25 minutes, or until fork-tender and lightly golden.
- Heat 2 tablespoons of salted butter and 1 tablespoon of olive oil in a saucepan over medium heat. Cook the chopped shallot until soft, about 5 minutes. Add minced garlic and stir until fragrant, about 1 minute.
- Stir in 1 cup of heavy cream and ½ cup of chicken or fish stock into the shallot mixture. Add rosemary, lemon zest, lemon juice, Dijon mustard, cayenne pepper, and capers. Simmer and thicken the sauce for about 5 minutes.
- Sprinkle 1 teaspoon of salt over the cod pieces, nestling them among the potatoes. Pour the creamy rosemary sauce over the top.
- Bake uncovered for about 10-15 minutes, or until the cod flakes easily with a fork and is opaque white.
- Remove from the oven and let it rest for a minute. Optional: sprinkle with minced flat-leaf parsley before serving.





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