Garlic Butter Cod: Perfectly Flaky in Under 20 Minutes

By Sadie Caldwell

On January 18, 2026

Two fillets of baked garlic butter cod served on a plate with roasted asparagus. The fish is flaky and topped with fresh herbs.

Cuisine

American

Prep time

5 minutes

Cooking time

15 minutes

Total time

20 minutes

Servings

4 fillets

If you’re searching for a dinner that’s incredibly fast, ridiculously flavorful, and impressively elegant, you’ve found it. This Garlic Butter Cod recipe is a game-changer for busy weeknights, delivering a restaurant-quality meal with minimal effort and ingredients. In less than 20 minutes, you can have tender, flaky cod drenched in a rich garlic butter sauce that’s simply irresistible. It’s the kind of healthy, satisfying dish that will make you feel like a culinary genius.

Why This Garlic Butter Cod Recipe Will Be Your New Favorite

This isn’t just another fish recipe; it’s a testament to the power of simple, high-quality ingredients. The cod bakes to perfection in a luscious sauce made from melted butter, fresh garlic, a hint of lemon, and a sprinkle of herbs. It’s a classic combination that never fails to impress.

  • Incredibly Fast: This entire dish, from prep to plate, is ready in about 20 minutes. It’s the perfect solution for those “what’s for dinner?” moments.
  • Effortlessly Easy: With just a handful of common ingredients and a simple process, even novice cooks can achieve flawless results.
  • Healthy & Light: Cod is a fantastic source of lean protein and omega-3 fatty acids. This recipe is naturally low-carb and keto-friendly.
  • Amazingly Versatile: This dish pairs beautifully with almost any side, from roasted vegetables to creamy pasta.

The Key Ingredients for Perfect Garlic Butter Cod

The magic of this recipe lies in its simplicity. We’re using a few key ingredients to create a symphony of flavor that enhances the delicate taste of the cod without overpowering it.

Choosing the Right Cod

For the best results, look for cod fillets or loins that are about 1-inch thick. This thickness ensures the fish cooks evenly, remaining moist and tender inside while absorbing the flavors of the sauce. Both fresh and frozen cod work well. If using frozen, make sure to thaw it completely and pat it thoroughly dry before cooking.

The Power Trio: Butter, Garlic, and Lemon

This combination is the heart of our dish. Use unsalted butter so you can control the saltiness. Freshly minced garlic provides a pungent, aromatic flavor that pre-minced jarred garlic can’t match. A squeeze of fresh lemon juice at the end cuts through the richness of the butter and brightens the entire dish.

How to Make Garlic Butter Cod: A Step-by-Step Guide

Follow these simple steps for a foolproof fish dinner.

  1. Preheat and Prep: Start by preheating your oven to 400°F (200°C). Pat your cod fillets completely dry with paper towels. This is a crucial step to ensure the fish bakes perfectly rather than steams.
  2. Arrange the Fish: Place the dried cod fillets in a baking dish. Season both sides generously with salt and pepper.
  3. Make the Garlic Butter Sauce: In a small bowl, whisk together the melted butter, minced garlic, and chopped fresh parsley.
  4. Sauce and Bake: Pour the garlic butter mixture evenly over the cod fillets. Bake for 12-15 minutes, or until the fish is opaque and flakes easily with a fork.
  5. Garnish and Serve: Remove the dish from the oven. Squeeze fresh lemon juice over the fish and garnish with more fresh parsley and red pepper flakes if desired. Serve immediately.
A close-up shot of the garlic butter sauce being poured over raw cod fillets in a baking dish before going into the oven.
The simple sauce is where all the flavor magic happens.

Pro Tips for Restaurant-Quality Baked Cod

Want to take your Garlic Butter Cod to the next level? These simple tips make all the difference and guarantee perfectly flaky fish every single time.

The Secret to Avoiding Overcooked Fish

The biggest mistake when cooking fish is overcooking it. The ideal internal temperature for cod is 145°F (63°C). However, it’s best to pull it from the oven when it reaches around 140°F (60°C), as it will continue to cook from residual heat. An instant-read thermometer is your best friend here.

How to Tell When Cod is Perfectly Cooked

If you don’t have a thermometer, you can check for doneness by inserting a fork into the thickest part of the fillet and gently twisting. If the fish flakes easily and has lost its translucent, raw appearance, it’s ready.

Two fillets of baked garlic butter cod served on a plate with roasted asparagus. The fish is flaky and topped with fresh herbs.
Perfectly flaky cod, every single time.

Delicious Variations on This Garlic Butter Cod

While this recipe is fantastic as is, it’s also a great canvas for other flavors.

  • Add a Touch of Spice: For a bit of a kick, try our spicy garlic butter sauce instead.
  • Parmesan Crusted Cod: Sprinkle a mixture of grated Parmesan cheese and breadcrumbs over the fillets before baking for a delicious, crispy topping.
  • Herb Variations: Feel free to experiment with other fresh herbs like dill, chives, or thyme for a different flavor profile.

What to Serve with Your Garlic Butter Cod

This versatile main course pairs well with a wide variety of side dishes. For a complete and satisfying meal, consider serving it with a side of creamy mashed potatoes to soak up the delicious sauce. For a lighter, healthier option, it’s fantastic with crispy air fryer broccoli or simple roasted asparagus. A fresh green salad also makes a wonderful accompaniment.

Storing and Reheating Instructions

Store any leftover cod in an airtight container in the refrigerator for up to 2 days. To reheat, it’s best to warm it gently in a skillet over low heat or in the oven at a low temperature (around 275°F) until just warmed through. Avoid the microwave, as it can make the fish tough and rubbery.

Frequently Asked Questions

Absolutely! Just make sure to thaw the cod completely in the refrigerator before you begin. Most importantly, pat the thawed fillets thoroughly dry with paper towels to remove excess moisture.

The best way is to use an instant-read thermometer; it should read 145°F. Alternatively, you can test it with a fork. Insert the fork into the thickest part and gently twist. If the fish flakes easily and is opaque, it’s done.

Yes, this Garlic Butter Cod recipe is naturally low in carbohydrates and high in protein and healthy fats, making it a perfect fit for a keto diet.

Fresh parsley is a classic choice that adds freshness and color. Fresh dill, chives, or even a little bit of thyme also pair beautifully with the lemon and garlic flavors.

Pacific or Atlantic cod fillets or loins are both excellent choices. Look for pieces that are about 1-inch thick, as this helps them cook evenly and stay moist.

Join the Community!

We hope you love this easy Garlic Butter Cod recipe! If you make it, we’d love to see your creation. Snap a photo and share it on Pinterest! Your feedback helps our community of home cooks grow. For more delicious dinner ideas, check out our popular Garlic Butter Steak Bites.

A close-up overhead shot of perfectly baked Garlic Butter Cod in a baking dish, garnished with fresh parsley and lemon slices. The cod is flaky and golden.
This 20-minute Garlic Butter Cod is the answer to your weeknight dinner prayers!

Garlic Butter Cod Recipe

Two fillets of baked garlic butter cod served on a plate with roasted asparagus. The fish is flaky and topped with fresh herbs.

Garlic Butter Cod: Perfectly Flaky in Under 20 Minutes

This Garlic Butter Cod is the ultimate weeknight dinner! Tender, flaky cod fillets are baked in a rich garlic butter sauce with lemon and fresh herbs. A healthy, flavorful, and easy fish recipe ready in under 20 minutes.
Prep Time 5 minutes
Cook Time 15 minutes
Total Time 20 minutes
Servings: 4 fillets
Course: Dinner, Main Course
Cuisine: American
Calories: 320

Ingredients
  

  • 4 cod fillets (6 oz each) About 1-inch thick
  • 1/2 cup unsalted butter melted
  • 4 cloves garlic minced
  • 1 tablespoon fresh lemon juice
  • 2 tablespoons fresh parsley chopped, plus more for garnish
  • 1/2 teaspoon salt or to taste
  • 1/4 teaspoon black pepper or to taste
  • 1/4 teaspoon red pepper flakes optional, for garnish

Equipment

  • 1 Baking Dish A 9x13 inch dish works well.
  • 1 Small Bowl For mixing the sauce.

Instructions
 

  1. Preheat your oven to 400°F (200°C).
  2. Pat the cod fillets completely dry with paper towels. Arrange them in a single layer in a baking dish and season both sides with salt and black pepper.
  3. In a small bowl, whisk together the melted butter, minced garlic, and 2 tablespoons of chopped fresh parsley.
  4. Pour the garlic butter sauce evenly over the cod fillets. Bake for 12-15 minutes, until the cod is opaque and flakes easily with a fork.
  5. Remove from the oven and squeeze the fresh lemon juice over the top. Garnish with additional fresh parsley and optional red pepper flakes. Serve immediately.

Notes

Thawing: If using frozen cod, ensure it is fully thawed in the refrigerator overnight before use.
Don't Overcook: Use an instant-read thermometer to check for doneness (140-145°F) for the best texture.

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