There’s something magical about coming home to a house that smells like garlic and seafood, knowing that dinner is already done. This crock pot shrimp and cod in creamy garlic sauce is one of those recipes that makes weeknight cooking feel effortless. The slow cooker does all the work, and you end up with tender seafood in a rich, garlicky cream sauce that’s absolutely restaurant-quality.
I started making this a few years ago when I wanted seafood but didn’t want to stand over the stove. The slow cooker seemed like an unlikely tool for delicate fish and shrimp, but it works beautifully when you add them at the right time. The cod stays tender and flaky, the shrimp are perfectly cooked, and the creamy garlic sauce is so good you’ll want to soak up every drop with crusty bread.
Why This Recipe Works
The key to making seafood in a slow cooker is timing. You can’t just throw everything in and walk away—seafood cooks quickly and overcooks easily. The solution is to build the creamy garlic sauce in the slow cooker first, then add the seafood during the last 30-45 minutes of cooking. This way, the sauce develops deep flavor while the seafood cooks gently and stays tender.
I love this recipe because it’s elegant enough for company but easy enough for a Tuesday night. The sauce is rich and creamy with plenty of garlic, and it pairs perfectly with rice, pasta, or crusty bread. It’s the kind of dish that makes people think you spent hours in the kitchen when really, the slow cooker did most of the work.
The Complete Recipe
What You’ll Need
For the Creamy Garlic Sauce:
2 tablespoons butter
6 cloves garlic, minced
1 small onion, finely diced
1 cup chicken or seafood broth
1 cup heavy cream
½ cup white wine (or additional broth)
2 tablespoons all-purpose flour
1 teaspoon dried thyme
½ teaspoon paprika
¼ teaspoon red pepper flakes (optional)
Salt and black pepper to taste
For the Seafood:
1 pound cod fillets, cut into 2-inch pieces
1 pound large shrimp, peeled and deveined
2 tablespoons fresh lemon juice
2 tablespoons fresh parsley, chopped
For Serving:
Cooked rice, pasta, or crusty bread
Extra parsley and lemon wedges
Step-by-Step Instructions
Step 1: Build the Sauce Base
In a skillet over medium heat, melt the butter. Add the minced garlic and diced onion, and sauté for 2-3 minutes until fragrant and softened. This step develops the garlic flavor and prevents raw garlic taste in the final dish.
Transfer the garlic and onion to your slow cooker.
Step 2: Make the Creamy Sauce
Add the broth, heavy cream, white wine, flour, thyme, paprika, red pepper flakes (if using), salt, and pepper to the slow cooker. Whisk everything together until the flour is dissolved and the sauce is smooth.
Cover and cook on LOW for 2-3 hours or HIGH for 1-1.5 hours. The sauce should be hot and slightly thickened.
Step 3: Add the Seafood
About 30-45 minutes before you’re ready to serve, add the cod pieces to the slow cooker. Gently stir to coat with the sauce.
Cover and cook on HIGH for 20 minutes.
Add the shrimp and lemon juice. Gently stir to combine.
Cover and cook on HIGH for another 10-15 minutes, until the shrimp are pink and opaque and the cod is flaky and cooked through.
Step 4: Finish and Serve
Gently stir in the fresh parsley. Taste and adjust seasoning with salt, pepper, or additional lemon juice if needed.
Serve immediately over rice, pasta, or with crusty bread for soaking up the sauce. Garnish with extra parsley and lemon wedges.
Tips I’ve Learned Along the Way
Don’t Add Seafood Too Early: This is crucial. Seafood overcooks quickly in a slow cooker. Adding it during the last 30-45 minutes ensures it stays tender and doesn’t become rubbery.
Sauté the Garlic First: Taking a few minutes to sauté the garlic and onion before adding them to the slow cooker makes a huge difference in flavor. Raw garlic can be harsh; sautéed garlic is sweet and mellow.
Use Fresh Seafood: Fresh or properly thawed frozen seafood works best. If using frozen, make sure it’s completely thawed and patted dry before adding to the slow cooker.
Don’t Overcook the Shrimp: Shrimp cook very quickly—10-15 minutes is all they need. They’re done when they turn pink and opaque. Overcooked shrimp are tough and rubbery.
Thicken if Needed: If the sauce is too thin, mix 1 tablespoon cornstarch with 2 tablespoons cold water and stir it into the sauce. Let it cook for a few more minutes to thicken.
Wine Substitute: If you don’t want to use wine, just use additional broth. The wine adds depth, but the dish is still delicious without it.
Make It Ahead: You can make the sauce base ahead of time and refrigerate it. When ready to serve, reheat in the slow cooker and add the seafood.
Variations I Love:
Cajun Style: Add Cajun seasoning and diced tomatoes
Italian Inspired: Add sun-dried tomatoes and fresh basil
Lemon Herb: Double the lemon and add fresh dill
Spicy: Increase red pepper flakes or add diced jalapeños
Different Seafood: Use scallops, mussels, or salmon instead
Why This Dish is a Winner
Crock pot shrimp and cod in creamy garlic sauce is the perfect answer to “What’s for dinner?” when you want something special but don’t have time to cook. The slow cooker does most of the work, and you end up with this elegant, restaurant-quality seafood dish that’s rich, creamy, and packed with flavor.
What I love most is how versatile it is. Serve it over rice for a complete meal, toss it with pasta for seafood pasta night, or serve it with crusty bread for dipping. It works for casual weeknight dinners or for entertaining guests.
It’s also a great way to enjoy seafood without the stress of timing everything perfectly on the stovetop. The slow cooker keeps everything at the perfect temperature, and you can add the seafood when you’re ready to eat.
Serving Suggestions
This creamy seafood dish pairs perfectly with:
White rice or rice pilaf – soaks up the sauce beautifully
Pasta (linguine, fettuccine, or angel hair)
Crusty bread for dipping
Garlic bread for extra garlic goodness
Simple green salad with lemon vinaigrette
Roasted asparagus or green beans
White wine (Chardonnay or Pinot Grigio)
The Bottom Line
If you think you can’t make seafood in a slow cooker, this recipe will change your mind. The key is adding the delicate seafood at the end, after the sauce has developed all its flavor. The result is tender cod and shrimp in a rich, creamy garlic sauce that tastes like you spent hours making it.
I make this all the time because it’s reliable, delicious, and makes weeknight seafood dinners totally doable. It’s one of those recipes that looks and tastes impressive but is actually quite simple once you understand the timing.
Give it a try, and I think you’ll find yourself making it on repeat. It’s one of those dishes that makes you look like a great cook without all the work.
What’s your favorite way to cook seafood? Have you tried making fish in a slow cooker before? Let me know in the comments!
Recipe Card
Crock Pot Shrimp and Cod in Creamy Garlic Sauce
Prep Time: 15 minutes
Cook Time: 2.5-3.5 hours
Total Time: 3-4 hours
Servings: 4-6
Difficulty: Easy
Ingredients:
Creamy Garlic Sauce:
2 tablespoons butter
6 cloves garlic, minced
1 small onion, finely diced
1 cup chicken or seafood broth
1 cup heavy cream
½ cup white wine (or additional broth)
2 tablespoons all-purpose flour
1 teaspoon dried thyme
½ teaspoon paprika
¼ teaspoon red pepper flakes (optional)
Salt and black pepper to taste
Seafood:
1 pound cod fillets, cut into 2-inch pieces
1 pound large shrimp, peeled and deveined
2 tablespoons fresh lemon juice
2 tablespoons fresh parsley, chopped
For Serving:
Cooked rice, pasta, or crusty bread
Extra parsley and lemon wedges
Instructions:
Melt butter in skillet over medium heat
Sauté garlic and onion 2-3 minutes until fragrant
Transfer to slow cooker
Add broth, cream, wine, flour, thyme, paprika, red pepper flakes, salt, pepper
Whisk until smooth
Cover, cook on LOW 2-3 hours or HIGH 1-1.5 hours
Add cod pieces, stir gently to coat
Cover, cook on HIGH 20 minutes
Add shrimp and lemon juice, stir gently
Cover, cook on HIGH 10-15 minutes until shrimp pink and cod flaky
Stir in fresh parsley
Taste and adjust seasoning
Serve over rice, pasta, or with crusty bread
Garnish with parsley and lemon wedges
Tips for Success:
Don’t add seafood until last 30-45 minutes
Sauté garlic first for better flavor
Use fresh or properly thawed seafood
Don’t overcook shrimp (10-15 minutes max)
Thicken sauce with cornstarch if needed
Can make sauce base ahead
Storage:
Best served fresh
Refrigerate leftovers up to 2 days
Reheat gently to avoid overcooking seafood
Nutrition (per serving):
Calories: ~380
Fat: 20g
Protein: 35g
Carbohydrates: 10g
Fiber: 1g
