As I stood in my kitchen, the sizzle of seasoned cod hitting the hot skillet brought back memories of summer beach shacks serving fresh tacos by the ocean. These Blackened Fish Tacos with Cilantro Slaw and Sriracha Mayo are my tribute to those sunny days—perfectly flaky fish enveloped in warm tortillas, drizzled with a creamy, spicy sauce that takes dinner to a whole new level. With a prep time so quick you’ll be left wondering why you ever thought takeout was necessary, these tacos are not only a flavor-packed delight but also a family-friendly meal that everyone will eagerly devour. Ready to take taco night up a notch? Let’s dive into this delicious adventure!

Why Love Blackened Fish Tacos?
Bursting with Flavor: Each bite of these tacos is an explosion of spices! The blackened cod pairs wonderfully with tangy cilantro slaw, creating an irresistible taste sensation.
Quick and Easy: Perfect for busy weeknights, these tacos come together in no time. You’ll be amazed at how effortlessly you can whip up a fresh, homemade meal.
Healthy & Light: At just 207 calories per taco, you can indulge without the guilt! A delightful option for those looking to enjoy a wholesome dinner.
Crowd-Pleasing: Whether it’s taco night with family or a casual gathering with friends, these tacos will be a hit. Everyone loves a good taco, and with this recipe, you’ll see plates coming back for seconds!
Customizable: Feel free to switch up the protein! Try shrimp, grilled chicken, or even a vegetarian option with your favorite veggies for variety. Check out my Parmesan Crusted Chicken for another delicious meal idea!
Blackened Fish Tacos Ingredients
For the Fish
• Cod – Thick-cut fish provides a hearty texture; substitute with haddock or tilapia if preferred.
• Olive oil – Adds moisture and helps cook the fish evenly.
• Unsalted butter – Enriches flavor; can be replaced with more olive oil for a dairy-free option.
• Chili powder – Adds heat and depth; adjust the amount for desired heat level.
• Paprika – Provides smokiness and color; swap with smoked paprika for enhanced flavor.
• Ground cumin – Imparts an earthy flavor profile.
• Garlic powder – Adds savory flavor; fresh garlic can be used as an alternative.
• Onion powder – Enhances overall taste; avoid if sensitive to onion.
• Black pepper & salt – Basic seasoning; opt for fresh ground pepper for quality.
• Cayenne pepper – For additional heat; can be omitted for a milder version.
For Assembly
• Tortillas – Use 6-inch corn or flour tortillas, or opt for gluten-free varieties.
• Shredded cabbage – Offers crunch; mix red and green for added color.
• Lime juice – Brightens flavors; fresh lime is preferred.
• Cilantro – Provides freshness; omit for a non-cilantro version.
For the Sriracha Mayo
• Low-fat mayonnaise – Acts as the base for a creamy sriracha mayo; Greek yogurt can be a healthier substitute.
• Sriracha – Adds a spicy kick; adjust according to heat tolerance.
• Sugar – Balances flavors in the mayo; can substitute with honey or agave syrup.
This delightful composition of Blackened Fish Tacos with Cilantro Slaw is your ticket to a vibrant taco night experience that your family will love!
Step‑by‑Step Instructions for Blackened Fish Tacos with Cilantro Slaw
Step 1: Prepare Your Spice Rub
In a small bowl, mix together chili powder, paprika, ground cumin, garlic powder, onion powder, black pepper, salt, and cayenne pepper. This vibrant spice blend will be the heart of your blackened fish tacos, delivering depth and heat. Make sure to stir until fully combined for an even seasoning, setting the stage for flavorful cod.
Step 2: Season the Cod
Take your thick-cut cod fillets and generously rub the prepared spice mixture all over the fish. Ensure every inch is coated to maximize flavor. Once seasoned, let the fish rest for about 10 minutes at room temperature, allowing the spices to penetrate the cod beautifully for a more robust taste.
Step 3: Heat the Skillet
In a large skillet, heat 2 tablespoons of olive oil and 1 tablespoon of unsalted butter over medium-high heat. Wait until the butter is melted and bubbling, signaling the skillet is ready. This searing method is essential for achieving that delightful, crispy char on your cod, which will elevate your blackened fish tacos.
Step 4: Cook the Cod
Once your skillet is hot, carefully place the seasoned cod in the pan. Cook the fish for 4-5 minutes on one side without moving it, allowing the spices to caramelize. When the edges start to darken and the fish flakes easily with a fork, flip it to cook for an additional 4-5 minutes on the other side, ensuring it’s cooked through and beautifully charred.
Step 5: Make the Cilantro Slaw
While the cod is cooking, grab a mixing bowl and combine shredded cabbage, fresh lime juice, chopped cilantro, salt, and pepper. Toss these ingredients together until the cabbage is evenly coated. This zesty cilantro slaw will add a refreshing crunch to your blackened fish tacos, balancing the spice of the fish perfectly.
Step 6: Whisk Together the Sriracha Mayo
In a small bowl, whisk together low-fat mayonnaise, a splash of lime juice, sriracha, and a touch of sugar until smooth. This creamy sauce will bring a spicy yet cooling element to your tacos, enhancing the flavors of both the fish and the slaw. Adjust the sriracha to taste based on your heat preference.
Step 7: Assemble the Tacos
Warm your tortillas in a dry pan just until pliable or briefly microwave them. To assemble, lay the blackened fish on each tortilla, followed by a generous handful of cilantro slaw. Drizzle with the spicy sriracha mayo, allowing the flavors to meld beautifully in every bite.
Step 8: Serve Immediately
Once assembled, serve your blackened fish tacos immediately while the fish is still flaky and warm. You can accompany them with lime wedges for an added burst of freshness. These tacos are perfect for sharing around the table, creating memorable family dinners that everyone will love.

Blackened Fish Tacos with Cilantro Slaw Variations
Feel free to personalize your tacos with these great twists that will excite your taste buds and cater to every preference!
-
Shrimp Swap: Replace cod with shrimp for a delightful seafood twist. Just sauté until pink and tender for quick cooking.
The sweetness of shrimp pairs beautifully with the spicy mayo and crunchy slaw, giving you a beachy vibe right at home. -
Grilled Chicken: Substitute the fish with marinated and grilled chicken for a heartier option. Use your favorite spices and let them shine!
Tender chicken adds a different flavor profile while still fitting perfectly in the taco, making it a hit with the family. -
Vegetarian Delight: For a meat-free version, try grilled veggies like zucchini and bell peppers or even black beans as your protein source.
This not only caters to vegetarians but also brings a colorful, fresh flair to your tacos! -
Smoky Flavor Boost: Use smoked paprika instead of regular paprika to deepen the flavor of your spice rub.
That hint of smoke elevates the entire dish, making it taste like you’ve been grilling all day! -
Heat it Up: Add diced jalapeños or chipotle peppers to the cilantro slaw for an extra kick.
This zesty enhancement will appease all the spice lovers at your table, turning your tacos into a fiery fiesta. -
Gluten-Free Tacos: Choose corn tortillas for a gluten-free option without sacrificing taste.
These tortillas have a delightful taste and texture, and they’ll keep your tacos light and enjoyable. -
Yogurt Twist: Swap low-fat mayonnaise for Greek yogurt in the sriracha mayo for a tangy, protein-packed alternative.
This not only lightens up the dish but adds a lovely creaminess that complements the fish beautifully. -
Top Them Off: Drizzle your tacos with a honey-lime vinaigrette for a sweet-sour punch or fresh avocado slices for creaminess.
These additions brighten the flavors and create harmony on your plate, inviting everyone to dig in with joy.
For more inspiration, give my Feta Crostini with Hot Honey a try or use leftover fish creatively in an easy lunch! Each variation brings its charm, and before you know it, you’ll have a signature taco night everyone will crave!
What to Serve with Blackened Fish Tacos with Cilantro Slaw
Create a delightful dining experience that complements your vibrant blackened fish tacos!
- Corn Salad: A refreshing mix of sweet corn, cherry tomatoes, and avocado, this salad adds a burst of color and sweetness to counterbalance the spices.
- Chips and Guacamole: Crispy tortilla chips paired with creamy, zesty guacamole make for a perfect starter, engaging your taste buds before the main event.
- Creamy Cilantro Rice: Fluffy rice infused with cilantro and lime echoes the flavors of your tacos, adding a satisfying element to the meal.
- Pico de Gallo: This fresh salsa of tomatoes, onions, and cilantro brings a tangy crunch that perfectly complements the warm tacos—ideal for a bright summer evening.
- Margaritas: An ice-cold margarita with a hint of lime balances the spice of the tacos, providing a refreshing sip that enhances your meal.
- Grilled Veggies: A side of lightly seasoned grilled vegetables introduces smokiness while maintaining a healthy element, creating a well-rounded plate.
Each of these pairings enhances your Blackened Fish Tacos with Cilantro Slaw, transforming dinner into a full-fledged fiesta!
Expert Tips for Blackened Fish Tacos
Sear Properly: Ensure your skillet is preheated before adding the cod to achieve that coveted blackened crust without steaming the fish.
Avoid Overcrowding: Cook the fish in batches if necessary; overcrowding the pan leads to steaming instead of searing, compromising flavor.
Taste as You Go: Adjust the spice levels based on your family’s preference, and don’t be shy to try the seasoning for a personalized touch.
Fresh Ingredients: Use freshly squeezed lime juice and high-quality spices for maximum flavor in your Blackened Fish Tacos with Cilantro Slaw.
Prep Ahead: You can make the cilantro slaw and sriracha mayo a few hours in advance; however, assemble tacos right before serving for the best texture.
How to Store and Freeze Blackened Fish Tacos
Fridge: Store leftover blackened fish in an airtight container in the fridge for up to 2 days. Keep the cilantro slaw and sriracha mayo separate to maintain their textures.
Freezer: If you have extra cooked fish, wrap it tightly in plastic wrap and then aluminum foil. It can be frozen for up to 2 months. Thaw in the fridge overnight before reheating.
Reheating: When ready to enjoy, reheat the fish in a skillet for a few minutes until warmed through, ensuring you retain its flaky quality.
Best Practices: Assemble tacos fresh for the best flavor and texture; store ingredients separately to maximize the delicious taste of your Blackened Fish Tacos with Cilantro Slaw.
Make Ahead Options
These Blackened Fish Tacos with Cilantro Slaw are perfect for meal prep and can save you precious time during busy weeknights! You can prepare the cilantro slaw and sriracha mayo up to 3 days in advance, storing them separately in airtight containers in the refrigerator to maintain their freshness. Additionally, the spice rub can be mixed and stored for up to 2 weeks for easy seasoning whenever you’re ready to cook. When it’s time to enjoy your tacos, simply cook the seasoned cod according to the directions, and assemble with the prepped slaw and mayo for a delightful, quick dinner that tastes just as delicious as if you’d made everything fresh!

Blackened Fish Tacos with Cilantro Slaw Recipe FAQs
How do I select the best cod for my tacos?
Absolutely! When choosing cod, look for thick-cut fillets that are firm and have a clean, ocean-like scent. Fresh cod should be shiny and moist with no dark spots. If you’re opting for frozen, ensure it’s well-packaged without freezer burn, as this can affect the texture once cooked.
What’s the best way to store leftovers?
Very! Store leftover blackened fish in an airtight container in the fridge for up to 2 days. For best results, keep your cilantro slaw and sriracha mayo separate to maintain their crunchiness and creaminess. Simply reheat the fish in a skillet over low heat when you’re ready to enjoy it again.
Can I freeze the blackened fish?
Absolutely! If you have extra cooked fish, wrap it tightly in plastic wrap and then aluminum foil. This way, it can be frozen for up to 2 months. Just remember to thaw it in the fridge overnight before reheating to retain its flaky quality.
What if the fish starts to steam while cooking?
Oh no! To prevent steaming, ensure your skillet is properly preheated before adding the fish. If you find the fish is steaming, it may be that you overcrowded the skillet. Cook in batches if necessary, giving the fish enough space to sear beautifully, which is key for that tasty blackened crust.
Are these fish tacos suitable for someone with certain dietary restrictions?
Very! While the recipe uses cod, you can easily substitute it with shrimp or grilled chicken if someone has a fish allergy. For those who need a dairy-free option, replace the butter with more olive oil, and use Greek yogurt instead of mayonnaise in the sriracha mayo. The cilantro slaw can be made without cilantro if there are sensitivities to that herb.
How long does the cilantro slaw last in the fridge?
Absolutely! The cilantro slaw can be made a few hours in advance, but it’s best stored in the refrigerator for up to 3 days. To keep it fresh, store it in an airtight container, and give it a good toss before serving to redistribute the flavors!

Blackened Fish Tacos with Cilantro Slaw for Flavor Lovers
Ingredients
Equipment
Method
- In a small bowl, mix together chili powder, paprika, ground cumin, garlic powder, onion powder, black pepper, salt, and cayenne pepper.
- Take your thick-cut cod fillets and generously rub the prepared spice mixture all over the fish. Let the fish rest for about 10 minutes.
- In a large skillet, heat olive oil and unsalted butter over medium-high heat until the butter is melted and bubbling.
- Carefully place the seasoned cod in the pan and cook for 4-5 minutes on one side without moving. Then flip and cook for an additional 4-5 minutes.
- Combine shredded cabbage, lime juice, cilantro, salt, and pepper in a mixing bowl and toss together until evenly coated.
- Whisk together mayonnaise, lime juice, sriracha, and sugar in a small bowl until smooth.
- Warm tortillas in a dry pan or microwave, then lay the blackened fish on each tortilla, add cilantro slaw and drizzle with sriracha mayo.
- Serve immediately with lime wedges for freshness.

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