As I stood in my kitchen, the intoxicating aroma of rosemary wafted through the air, instantly transporting me to a cozy countryside cottage. I’m excited to share my recipe for Cod & Potatoes in Rosemary Cream Sauce, a comforting one-dish meal that effortlessly combines elegance with ease. Tender cod fillets are nestled alongside buttery Yukon gold potatoes, all enveloped in a rich, creamy sauce that has just the right zing of lemon. This dish offers not only a delightful escape from the usual weeknight dinner rush but also a fantastic way to impress your loved ones without spending hours in the kitchen. Ready to bring a twist of cozy sophistication to your table? Let’s dive into this comforting culinary adventure!

Why is this dish a must-try?
Comforting Simplicity: This recipe wraps tender cod and buttery potatoes in a creamy rosemary sauce, creating a dish that feels like a warm hug on chilly nights.
Effortless Elegance: Impress your guests without spending hours in the kitchen. Just one pan is all you need!
Flavorful Balance: The zesty lemon and aromatic rosemary beautifully brighten the rich sauce, making every bite a delightful experience.
Versatile Options: Feel free to swap the cod for haddock or add fresh veggies like asparagus for extra nutrition.
Quick Weeknight Fix: Ready in just 30 minutes, it’s the perfect solution for busy evenings.
With its crowd-pleasing appeal, this dish might just become your new family favorite, alongside other favorites like Garlic Shrimp Potatoes or Cheesy Chicken Potatoes.
Cod & Potatoes in Rosemary Cream Sauce Ingredients
• Let’s gather the essential components for this creamy comfort dish that makes weeknight dinners a breeze!
For the Cream Sauce
- Extra-Virgin Olive Oil – Adds richness and moisture to the dish. Substitution: Can use vegetable oil in a pinch.
- Kosher Salt – Enhances flavor. Note: Adjust according to taste.
- Salted Butter – Contributes richness to the sauce. Note: Unsalted butter can be used if reducing sodium.
- Large Shallot – Provides a mild onion flavor. Substitution: Use a small onion if shallots are unavailable.
- Garlic Cloves – Boosts flavor with aromatic intensity. Substitution: Garlic powder can be used (1 clove = 1/8 teaspoon garlic powder).
- Heavy Cream – Creates a luscious, creamy sauce. Substitution: Use half-and-half or whole milk for a lighter sauce (less richness).
- Chicken or Fish Stock – Introduces depth to the sauce. Note: Vegetable stock for a vegetarian option.
- Fresh Rosemary – Offers an aromatic herbal note. Substitution: Use ½ teaspoon dried rosemary for each sprig.
- Lemon Zest – Provides a fresh, citrusy brightness. Substitution: None specific.
- Fresh Lemon Juice – Enhances flavor with acidity. Note: Approx. juice of one lemon; can adjust to taste.
- Dijon Mustard – Adds tang and complexity to the sauce. Substitution: Yellow mustard if Dijon is unavailable.
- Ground Cayenne Pepper – Gives a subtle kick. Substitution: Omit for no heat or use paprika for a mild alternative.
- Capers – Contributes a briny flavor. Substitution: Use chopped green olives for a similar taste.
For the Main Dish
- Cod Fillet – The main protein, mild and flaky when cooked. Substitution: Haddock, halibut, or tilapia may be used.
- Yukon Gold Potatoes – Provide a creamy texture. Substitution: Red or russet potatoes will work; expect slight texture differences.
- Freshly Cracked Black Pepper – Adds seasoning and warmth. No direct substitution suggested.
- Fresh Parsley – Optional garnish for color and freshness. Substitution: Use 1 tablespoon dried parsley if fresh is not available or omit.
With these ingredients at hand, you’re all set to create a memorable dinner experience that warms both the heart and the belly. Let’s get cooking!
Step‑by‑Step Instructions for Cod & Potatoes in Rosemary Cream Sauce
Step 1: Roast the Potatoes
Preheat your oven to 450°F (232°C) and grease an 8×8-inch baking dish with 1 tablespoon of olive oil. In a mixing bowl, toss the Yukon gold potatoes with the remaining olive oil, 1 teaspoon of kosher salt, and freshly cracked black pepper until well coated. Spread the potatoes in a single layer in the dish and roast for 20-25 minutes, or until they’re fork-tender and golden brown.
Step 2: Prepare the Sauce
While the potatoes are roasting, start on the rich rosemary cream sauce. In a saucepan, melt 2 tablespoons of salted butter with the remaining olive oil over medium heat. Add the chopped shallot and sauté for about 5 minutes until softened, then stir in minced garlic for an additional minute until fragrant. Next, mix in heavy cream, chicken stock, rosemary, lemon zest, fresh lemon juice, Dijon mustard, cayenne, and capers. Bring the mixture to a gentle simmer and cook for 5 minutes, allowing it to thicken slightly.
Step 3: Bake the Cod
Once the potatoes are finished roasting, remove the dish from the oven and carefully nestle the seasoned cod fillets among the potatoes. Pour the prepared rosemary cream sauce evenly over the cod and potatoes, ensuring everything is nicely coated. Return the dish to the oven and bake uncovered for about 10-15 minutes, or until the cod flakes easily with a fork and appears opaque.
Step 4: Serve and Garnish
After baking, remove the dish from the oven and let it rest for a few minutes. If desired, garnish your Cod & Potatoes in Rosemary Cream Sauce with freshly chopped parsley to add a pop of color and freshness. Serve this comforting, one-dish meal hot, inviting your loved ones to dig into the delightful flavors you’ve created!

Cod & Potatoes Variations
Feel free to personalize this comforting dish and let your creativity shine!
- Dairy-Free: Replace heavy cream with coconut milk for a dairy-free alternative that still delivers creaminess.
- Lighter Option: Substitute heavy cream with half-and-half or whole milk for a lower-fat version.
- Different Proteins: Swap cod for any firm white fish like haddock or tilapia, allowing for unique flavor profiles.
- Veggie Boost: Add vegetables such as chopped spinach or asparagus for an extra nutritional punch and vibrant color.
- Herb Twist: Experiment with different herbs like thyme or dill for an entirely new aromatic experience.
- Flavor Kick: Throw in some diced jalapeños or red pepper flakes if you’re keen on a spicy kick in your meal.
- Citrus Zing: Incorporate orange zest along with lemon for an added layer of citrusy brightness in the sauce.
- Savory Depth: Try sautéing mushrooms along with the shallots for an earthy flavor that pairs beautifully with the cod.
With these variations, you’re sure to create a delightful twist on your Cod & Potatoes in Rosemary Cream Sauce. You might find yourself inspired to explore other home-cooked favorites, like Fried Cod Fish or Sausage Sweet Potatoes. Happy cooking!
How to Store and Freeze Cod & Potatoes in Rosemary Cream Sauce
Fridge: Store leftovers in an airtight container for up to 2-3 days. Reheat gently in the microwave or on the stovetop to preserve the creamy texture.
Freezer: For longer storage, freeze the cod & potatoes in an airtight container for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating: Reheat the dish on low heat to prevent the cod from drying out. Stir in a splash of heavy cream if the sauce thickens too much during storage.
Freshness Tip: Always check for freshness before consuming leftovers, especially when reheating. Enjoy every bite of your cozy dish!
Make Ahead Options
These Cod & Potatoes in Rosemary Cream Sauce are perfect for meal prep enthusiasts! You can make the creamy rosemary sauce up to three days in advance; simply store it in an airtight container in the refrigerator to keep it fresh and flavorful. Additionally, you can roast the Yukon gold potatoes up to 24 hours before serving, allowing them to cool before storing them in the fridge as well. When you’re ready to enjoy this comforting dish, layer the prepped potatoes in your baking dish, nestle the seasoned cod on top, and pour the sauce over—then bake for about 10-15 minutes. Following this method ensures that every bite is just as delicious as if made fresh!
What to Serve with Baked Cod with Rosemary Cream Sauce?
Elevate your cozy dinner with delicious accompaniments that complement the rich flavors of this delightful dish.
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Garlic Bread: Provides a crispy, buttery element that’s perfect for soaking up the creamy sauce. The aroma alone will make your mouth water!
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Green Salad: A fresh, crisp salad with mixed greens and a light vinaigrette balances the richness of the cod and potatoes, adding a refreshing crunch.
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Steamed Asparagus: Tender spears lightly seasoned with lemon complement the dish’s creamy texture while adding vibrant color and additional nutrients.
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Roasted Broccoli: The slight bitterness of roasted broccoli beautifully contrasts the rich flavors of the cream sauce, creating a harmonious, balanced plate.
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Chardonnay: A chilled glass of chardonnay enhances the dish’s flavors, with its crisp, fruity notes pairing wonderfully with the lemon and rosemary.
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Lemon Sorbet: End your meal on a light note! This fresh dessert cleanses the palate, echoing the lemony brightness from the main dish.
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Cauliflower Mash: For a low-carb alternative, creamy cauliflower mash provides a velvety texture that mirrors the potatoes while being lighter—a fantastic addition to your plate!
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Balsamic Glazed Carrots: These sweet, caramelized carrots bring a pop of sweetness and a beautiful color contrast, making your meal visually enticing as well.
Expert Tips for Cod & Potatoes Recipe
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Check Sauce Thickness: Ensure the sauce coats the back of a spoon. If it’s too thin, simmer a little longer to thicken.
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Avoid Overcooking: Cod can dry out quickly. Bake just until it flakes easily for a moist, flaky texture.
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Prep Ahead: You can prepare the cream sauce in advance. Just store it in the fridge and gently reheat before pouring it over your cod.
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Season Thoughtfully: Don’t skip seasoning the cod with salt and pepper. Proper seasoning enhances the overall flavor of the dish.
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Vegetable Additions: Feel free to add veggies like asparagus or spinach for extra nutrition without compromising the comforting essence of the cod & potatoes in rosemary cream sauce.

Cod & Potatoes in Rosemary Cream Sauce Recipe FAQs
What type of potatoes should I use for this recipe?
I recommend using Yukon Gold potatoes for their creamy texture and buttery flavor. However, if you can’t find them, red or russet potatoes work well, but be prepared for a slight texture difference.
How do I store leftovers of the cod and potatoes?
Store any leftovers in an airtight container in the fridge for up to 2-3 days. When reheating, do so gently in the microwave or on the stovetop to maintain the creamy sauce’s texture.
Can I freeze Cod & Potatoes in Rosemary Cream Sauce?
Absolutely! You can freeze the dish in an airtight container for up to 2 months. To reheat, thaw it overnight in the fridge. When ready, gently reheat it on low heat to avoid drying out the cod. If the sauce thickens too much during storage, stir in a splash of heavy cream to bring back its luscious creaminess.
What should I do if the sauce seems too thin?
If you find that your sauce is too thin, simply let it simmer over medium-low heat for a few more minutes. This will help it reduce and thicken. You want the sauce to be able to coat the back of a spoon, providing that velvety mouthfeel we’ve all come to love.
Are there any dietary substitutions I should consider?
If you have dietary restrictions, you can substitute heavy cream with half-and-half or whole milk for a lighter version. Additionally, use vegetable broth instead of chicken stock for a vegetarian option. Make sure to check ingredients for any allergies and adjust as needed, such as omitting the capers if necessary.
Can I add other vegetables to this dish?
The more the merrier! You can absolutely add vegetables like asparagus or spinach for added nutrition and flavor. Just toss them in with the potatoes or layer them beneath the cod before pouring on the sauce for an extra pop of color and health benefits.

Creamy Cod & Potatoes in Rosemary Sauce for Cozy Nights
Ingredients
Equipment
Method
- Preheat your oven to 450°F (232°C) and grease an 8x8-inch baking dish with 1 tablespoon of olive oil.
- In a mixing bowl, toss the Yukon gold potatoes with the remaining olive oil, 1 teaspoon of kosher salt, and freshly cracked black pepper until well coated. Spread the potatoes in a single layer in the dish and roast for 20-25 minutes, or until they're fork-tender and golden brown.
- In a saucepan, melt 2 tablespoons of salted butter with the remaining olive oil over medium heat. Add the chopped shallot and sauté for about 5 minutes until softened, then stir in minced garlic for an additional minute until fragrant.
- Next, mix in heavy cream, chicken stock, rosemary, lemon zest, fresh lemon juice, Dijon mustard, cayenne, and capers. Bring the mixture to a gentle simmer and cook for 5 minutes, allowing it to thicken slightly.
- Once the potatoes are finished roasting, remove the dish from the oven and carefully nestle the seasoned cod fillets among the potatoes.
- Pour the prepared rosemary cream sauce evenly over the cod and potatoes, ensuring everything is nicely coated. Return the dish to the oven and bake uncovered for about 10-15 minutes or until the cod flakes easily with a fork and appears opaque.
- After baking, remove the dish from the oven and let it rest for a few minutes. If desired, garnish your Cod & Potatoes in Rosemary Cream Sauce with freshly chopped parsley.
- Serve this comforting, one-dish meal hot, inviting your loved ones to dig into the delightful flavors you've created!

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