If you’re craving a dish that brings together the vibrant flavors of the sea with a bright, zesty finish, you’re going to love this Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe. With perfectly cooked tuna steaks kissed by a buttery sauce bursting with fresh lemon, briny capers, and fragrant parsley, this recipe is a celebration on your plate that’s both elegant and incredibly approachable. Whether it’s a weeknight dinner or a special meal to impress, this dish promises unforgettable taste and a satisfying texture that will keep you coming back for more.

Ingredients You’ll Need
To create this dish, you only need a handful of simple, fresh ingredients that each play a crucial role in bringing these flavors to life. From the meaty texture of fresh tuna to the creamy richness of butter, and the sharp freshness of lemon and capers, every element adds its own layer of deliciousness.
- 800g-1kg fresh tuna steaks: Choose thick, firm cuts for the best searing and juicy interior.
- Olive oil: Used to lightly coat the tuna, helping it sear beautifully without sticking.
- Sea salt and pepper: Essential for seasoning and enhancing the natural flavors of the tuna.
- 100g salted butter: Forms the rich base for the lemon, caper, and parsley sauce.
- 3 tablespoons baby capers: Add a tangy, salty punch with each bite.
- 2½ tablespoons chopped fresh parsley: Brings freshness and color to the butter sauce.
- 2 tablespoons fresh lemon juice: Injects a lively citrus brightness that lifts the entire dish.
- Caperberries and lemon wedges for garnish: Provide a pretty, flavorful finishing touch on the plate.
How to Make Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe
Step 1: Prepare the Tuna
Start with 800g to 1kg of fresh tuna steaks. Give them a gentle brush with olive oil on both sides and then season generously with sea salt and freshly cracked black pepper to bring out the natural flavors of the fish. This simple prep sets a solid foundation for searing.
Step 2: Sear the Tuna Steaks
Heat a large griddle pan or a heavy non-stick skillet over medium-high heat until it’s really hot. Place the tuna steaks in the pan and cook for about 3 to 5 minutes on each side, depending on thickness. The goal is a golden crust outside with a tender, slightly pink center. Remove the steaks from the pan promptly to prevent overcooking; they will continue to cook slightly as they rest.
Step 3: Make Lemon, Caper & Parsley Butter
While the tuna rests, melt the salted butter in a small saucepan over low heat. Stir in 3 tablespoons of baby capers, 2½ tablespoons of chopped fresh parsley, and 2 tablespoons of fresh lemon juice. Allow the sauce to gently simmer until everything melds into a smooth, fragrant butter that’s rich with citrus zing and salty caper goodness.
Step 4: Serve Your Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe
Place the warm tuna steaks on serving plates and spoon the luscious lemon caper butter generously over the top. Garnish with caperberries and fresh lemon wedges for that extra burst of flavor and eye-catching appeal. Get ready to dive into an explosion of textures and tastes!
How to Serve Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe

Garnishes
Adding caperberries and lemon wedges not only brightens the visual presentation but also allows guests to tweak the flavor to their liking. The caperberries offer a mild tangy burst that complements the sauce perfectly, while a quick squeeze of lemon juice adds a refreshing zing.
Side Dishes
This Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe pairs wonderfully with light, crisp sides such as a simple green salad, quinoa tossed with fresh herbs, or steamed asparagus. These choices complement the rich butter sauce and keep the spotlight on the tuna without overwhelming the palate.
Creative Ways to Present
For a more stunning presentation, slice the tuna steaks into thick strips and fan them out on the plate like a deck of cards. Drizzle the lemon caper butter in a sweeping motion and scatter fresh parsley leaves for a restaurant-quality finish that’s sure to impress family and friends.
Make Ahead and Storage
Storing Leftovers
If you happen to have any leftovers from your Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe, store them in an airtight container in the refrigerator. They will keep well for up to 2 days, though the texture of the tuna is best fresh.
Freezing
Freezing seared tuna is generally not recommended because the texture can become mushy once thawed. To maintain the best flavor and mouthfeel, enjoy this dish fresh or refrigerated rather than frozen.
Reheating
To reheat, gently warm the tuna steaks in a low oven or a pan over low heat. Avoid microwave reheating as it tends to cook the fish further, causing it to dry out. Warm the lemon caper butter separately and pour over when serving to keep the flavors vibrant.
FAQs
Can I use frozen tuna steaks for this recipe?
While fresh tuna steaks are ideal for searing, you can use frozen tuna steaks if you thaw them completely and pat dry before cooking. Freshness makes a big difference in flavor and texture, so fresh is always best.
How do I know when the tuna is perfectly seared?
The tuna should have a golden-brown crust on the outside while maintaining a pink, slightly rare center. This usually takes about 3 to 5 minutes per side, depending on thickness. The steak will feel firm but still tender when pressed gently.
Can I substitute the capers if I don’t have them?
Capers provide a unique briny and tangy flavor that’s central to this recipe, but if needed, chopped green olives or a small sprinkle of chopped pickles can work in a pinch, altering the flavor slightly.
Is this recipe suitable for a paleo or keto diet?
Absolutely! Tuna steaks and the lemon caper parsley butter are low in carbs, rich in healthy fats, and packed with protein, making this dish a great fit for paleo and keto lifestyles.
Can I make the lemon caper butter in advance?
Yes, you can prepare the lemon caper butter ahead of time and gently reheat it when ready to serve. Just be sure to melt it slowly and avoid overheating to preserve its texture and flavor.
Final Thoughts
There’s something truly special about a simple yet sophisticated dish like this Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe. It’s a perfect marriage of flavors and textures — tender, juicy tuna paired with a bright, buttery sauce that sings on the palate. If you want to impress yourself or guests without fussing over complicated steps, this recipe is a brilliant choice. Give it a try and enjoy the deliciously fresh experience it brings to your table!
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Seared Tuna Steaks with Lemon, Caper & Parsley Butter Recipe
- Prep Time: 5 minutes
- Cook Time: 15 minutes
- Total Time: 20 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Frying
- Cuisine: Mediterranean
- Diet: Low Fat
Description
Seared Tuna Steaks with Lemon, Caper & Parsley Butter is a quick and elegant seafood dish featuring fresh tuna steaks seared to perfection and topped with a vibrant, tangy butter sauce made from lemon juice, capers, and parsley. This recipe is perfect for a healthy and flavorful meal in just 20 minutes.
Ingredients
For the Tuna Steaks
- 800g-1kg fresh tuna steaks
- Olive oil, for brushing
- Sea salt and freshly ground black pepper, to taste
For the Lemon, Caper & Parsley Butter
- 100g salted butter
- 3 tablespoons baby capers
- 2½ tablespoons chopped fresh parsley
- 2 tablespoons fresh lemon juice
For Garnish
- Caperberries
- Lemon wedges
Instructions
- Prepare Tuna: Pat the tuna steaks dry with paper towels to remove excess moisture, which will help achieve a better sear.
- Season Tuna: Brush both sides of the tuna steaks evenly with olive oil. Season generously with sea salt and freshly ground black pepper to enhance the flavor.
- Heat Pan: Preheat a large griddle or non-stick frying pan over medium-high heat until hot but not smoking.
- Sear Tuna: Place the tuna steaks in the hot pan and cook for 3-5 minutes on each side, depending on thickness. For rare to medium-rare doneness with a pink center, remove the steaks from heat promptly as they will continue cooking with residual heat.
- Make Lemon Caper Butter: In a small saucepan, gently melt the salted butter over low heat. Once melted, add the baby capers, chopped fresh parsley, and fresh lemon juice. Bring the mixture to a gentle simmer to meld the flavors, then remove from heat.
- Serve: Transfer the seared tuna steaks to serving plates. Spoon the warm lemon caper butter generously over the top. Garnish with whole caperberries and lemon wedges on the side for added zest and presentation.
Notes
- Use fresh tuna steaks for the best texture and flavor; sashimi-grade tuna is ideal.
- Adjust cooking time based on steak thickness and your preferred doneness.
- Be careful not to overcook the tuna to maintain a tender and moist center.
- The lemon caper butter can be made ahead and gently reheated before serving.
- Serve with a side of steamed vegetables or a fresh salad for a balanced meal.

