Roasted Fish in a Mustard Sauce – Barefoot Contessa

I remember the first time I made this dish. It was a gloomy Tuesday evening, and I was feeling uninspired in the kitchen. Staring into the refrigerator, I spotted some beautiful red snapper fillets and remembered seeing Ina Garten’s recipe for Roasted Fish in Mustard Sauce. The simplicity of the recipe, with its promise of bold flavors, instantly lifted my spirits. As the aroma of Dijon and shallots filled my kitchen, a sense of calm washed over me. The result was a perfectly flaky fish, bathed in a creamy, tangy sauce that felt both elegant and comforting. It turned an ordinary weeknight into something truly special.

Recipe Overview

• Prep Time: 10 minutes
• Cook Time: 10-15 minutes
• Total Time: 20-25 minutes
• Servings: 4
• Yield: 4 fillets
• Dietary Type: Pescatarian

Ingredients

• 4 (8 ounce) fish fillets, such as red snapper
• Kosher salt & freshly ground black pepper
• 8 ounces crème fraîche (found in the dairy section)
• 3 tablespoons Dijon mustard
• 1 tablespoon whole grain mustard
• 2 tablespoons shallots, minced
• 2 teaspoons capers, drained
• 1 teaspoon kosher salt
• 1⁄2 teaspoon fresh ground black pepper

Equipment Needed

• Sheet pan with sides (or ovenproof baking dish)
• Parchment paper
• Small bowl
• Whisk or spoon

Instructions

1. Preheat your oven to 425 degrees F (220 degrees C).

2. Line a sheet pan (with sides) with parchment paper. Alternatively, you can use an ovenproof baking dish. Ensure the pan is large enough so the fish fillets won’t be crowded. Crowding the fish will prevent it from cooking evenly within the directed time.

3. Place the fish fillets, skin side down, on the prepared pan and sprinkle generously with kosher salt and freshly ground black pepper. Don’t be shy with the seasoning – it’s crucial for the overall flavor.

4. In a small bowl, combine the crème fraîche, Dijon mustard, whole grain mustard, minced shallots, drained capers, 1 teaspoon of kosher salt, and 1⁄2 teaspoon of freshly ground black pepper. Mix all ingredients together thoroughly until well combined. This is your flavourful sauce.

5. Spoon the mustard sauce evenly over the fish fillets, making sure the fish is completely covered. Ensure each fillet is generously coated for maximum flavor.

6. Bake for 10 to 15 minutes, depending on the thickness of your fish, until it is just done. The fish will flake easily, using a fork, at the thickest part when it is done. Keep a close eye on it to prevent overcooking, which can make the fish dry.

7. Serve the fish fillets immediately with the sauce from the pan spooned generously over the top.

Expert Tips & Tricks

• Don’t Overcook: The biggest mistake you can make is overcooking the fish. Fish is done when it flakes easily with a fork. Start checking for doneness around 10 minutes and adjust the cooking time based on the thickness of your fillets.
• Parchment Paper is Key: Using parchment paper ensures the fish doesn’t stick to the pan, making for easy cleanup and preventing the fish from tearing when you remove it.
• Shallot Fineness: Mince the shallots very finely. Large pieces can have a strong, overpowering flavor.
• Spice it Up: For a touch of heat, add a pinch of red pepper flakes to the sauce.
• Make Ahead (Partially): You can prepare the mustard sauce up to a day in advance. Store it in the refrigerator and spoon it over the fish just before baking.
• Crème Fraîche Substitute: If you can’t find crème fraîche, you can use sour cream, although the flavor will be slightly tangier. You can also use plain Greek yogurt for a lighter option.

Serving & Storage Suggestions

Serve the Roasted Fish in Mustard Sauce immediately while it’s hot and the sauce is creamy. It pairs beautifully with a simple green salad, roasted asparagus, or steamed green beans. A side of crusty bread is also excellent for soaking up the delicious sauce.

To store leftovers, let the fish cool completely, then place it in an airtight container in the refrigerator. It will last for up to 2 days. Reheat gently in a low oven (around 300°F/150°C) or in a microwave. Be careful not to overcook it when reheating, as it can become dry. I don’t recommend freezing the cooked fish, as the texture will change.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	448 kcal	N/A
Total Fat	23.6g	36%
Saturated Fat	13.5g	67%
Cholesterol	202.3mg	67%
Sodium	847.3mg	35%
Total Carbohydrate	3.5g	1%
Dietary Fiber	0.6g	2%
Sugars	0.2g	0%
Protein	53.8g	107%

Note: Percent Daily Values are based on a 2,000 calorie diet.

Variations & Substitutions

• Fish Variety: While red snapper is excellent, you can use other white fish fillets such as cod, halibut, or sea bass. Adjust the cooking time according to the thickness of the fish.
• Lemon Zest: Add a teaspoon of lemon zest to the mustard sauce for a bright, citrusy flavor.
• Fresh Herbs: Sprinkle chopped fresh herbs like dill, parsley, or chives over the finished dish for added freshness and visual appeal.
• Wine Pairing: A dry white wine like Sauvignon Blanc or Pinot Grigio pairs beautifully with this dish. The acidity of the wine cuts through the richness of the sauce.
• Garlic: Add 1 minced clove of garlic to the shallots for a richer, deeper flavour.
• Gluten-Free: This recipe is naturally gluten-free. However, always double-check the labels on your Dijon and whole grain mustards to ensure they are certified gluten-free if you have a severe allergy.

FAQs (Frequently Asked Questions)

Q: Can I use frozen fish fillets for this recipe?
A: Yes, you can. Make sure to thaw the fish completely before cooking, and pat it dry with paper towels to remove excess moisture.

Q: Can I make this recipe ahead of time?
A: You can prepare the sauce a day in advance. However, it’s best to cook the fish just before serving to prevent it from drying out.

Q: How do I know when the fish is cooked through?
A: The fish is done when it flakes easily with a fork at the thickest part. The internal temperature should reach 145°F (63°C).

Q: Can I broil the fish instead of baking it?
A: Yes, you can broil the fish, but watch it very carefully as it can cook very quickly and easily burn. Position the rack about 4-6 inches from the broiler and broil for about 5-7 minutes, or until the fish is cooked through.

Q: What other vegetables would pair well with this dish?
A: Roasted asparagus, steamed green beans, sautéed spinach, or a simple green salad are all excellent choices.

Final Thoughts

This Roasted Fish in Mustard Sauce is a testament to the fact that simple ingredients, when combined thoughtfully, can create extraordinary flavors. It’s a dish that’s elegant enough for a dinner party yet easy enough for a weeknight meal. I encourage you to try it, experiment with the variations, and make it your own. Don’t hesitate to share your creations and feedback – I’d love to hear how it turns out for you! Consider serving it with a crisp glass of white wine and some crusty bread to soak up every last drop of that luscious mustard sauce. Happy cooking!