Atún Encebollado: Andalusian Tuna and Onion Tapas Recipe 2026

Atún encebollado is one of the most iconic tapas in Andalusia, and for good reason. Tender chunks of fresh tuna are nestled into a sweet, slow-cooked onion sofrito perfumed with sherry, bay leaf, oregano and sweet paprika. It is homestyle cooking at its very best, simple, generous and full of flavor.

The whole secret is choosing great fresh tuna and adding it at the very end so it stays juicy, while the onions cook low and slow until caramelized. You can make it with or without sauce, and either way it comes together in about an hour with just a handful of pantry staples.

Ingredients for Atún Encebollado

Serves 2 as a main course or 4 as a tapa.

• 400 g fresh tuna
• Salt
• Ground black pepper
• 2 garlic cloves
• 3 onions
• 4 tablespoons extra virgin olive oil
• 1 splash of sherry wine
• Half a glass of fish stock or water (optional, if you want it with sauce)
• 1 bay leaf
• Half a teaspoon dried oregano
• 1 teaspoon sweet paprika

How to Make Atún Encebollado Step by Step

1. Season the tuna and prep the vegetables

Start by cutting 400 g of tuna into bite-sized cubes, season them lightly with salt and pepper and set aside. Peel and finely chop 2 garlic cloves, then cut 3 onions into thin julienne strips.

2. Slowly cook the onions

Heat 4 tablespoons of extra virgin olive oil in a skillet and sauté the garlic for 1 minute. Add the onion and cook over medium-low heat for about 45-50 minutes, stirring occasionally so it cooks evenly and turns soft and golden.

3. Add the sherry and reduce

Pour in 1 splash of sherry wine and add 1 bay leaf to the skillet with the onion. Turn the heat to high and cook for about 3 minutes until the sauce reduces slightly. If you want your atún encebollado with sauce, this is the moment to add half a glass of fish stock or water and let it simmer gently for a few minutes so the flavors come together.

4. Season and add the tuna

Season the onion with half a teaspoon of dried oregano and 1 teaspoon of sweet paprika, then add the reserved tuna. Stir gently and cook everything for 2 to 4 minutes over medium heat, depending on how you like your tuna and the size of the cubes. Do not cook it any longer than this or the fish will dry out.

5. Serve immediately

Once the atún encebollado is cooked to your liking, serve it right away so you can enjoy it at its best.

Tips for the Best Atún Encebollado

Use great fresh tuna and add it last

The single most important thing is to buy good fresh tuna and add it to the pan only at the end of cooking. That way the fish stays juicy and flavorful instead of turning dry and chalky.

Cook the onions low and slow

The other key to a great atún encebollado is cooking the onions slowly until they caramelize. That sweet, deep flavor is what makes the dish feel complete and rounded.

Serve it right away

To enjoy atún encebollado at its best, serve it immediately as a tapa or as a main course alongside a simple fresh salad that lets the tuna shine.

30 Best Recipes I Love Making at Home

If you’re like me, you probably enjoy keeping a mix of easy comfort food, classic international dishes, and crowd-pleasing desserts on hand.

Whenever I want something rich and indulgent, I usually go for this La Viña Molten Cheesecake recipe, this elegant Original French Crème Brûlée recipe, or a decadent Chocolate Mousse Cake recipe. And when I’m craving something fruity and comforting, I always come back to this classic French Tarte Tatin recipe.

For easy breakfasts and lighter meals, I often make these fluffy Oatmeal and Banana Pancakes recipe, a satisfying Stuffed Sweet Potato recipe, or these fresh Eggs Stuffed with Avocado and Salmon recipe. When I need a gluten-free pantry staple, I also like preparing this simple Gluten-Free Rice Flour recipe.

When I’m in the mood for tapas and Mediterranean flavors, I usually rotate between this bold Basque Tuna with Tomato recipe, crispy Patatas Bravas Air Fryer recipe, creamy Tirokafteri Greek Dip Sauce recipe, and refreshing Burrata Salad with Tomato and Pesto recipe. I also love serving this crisp Italian Vitello Tonnato recipe when I want something a little more special.

For hearty lunches and cozy dinners, I always recommend this comforting Meatballs in Spanish Sauce recipe, traditional Meatballs in Almond Sauce recipe, rich Italian Bolognese Sauce recipe, and creamy Chicken Croquettes in Thermomix recipe. If I want something more filling, I’ll often make this baked Greek Pastitsio Pie recipe, rustic Potatoes and Squid Stew recipe, or the ultra-comforting French Boeuf Bourguignon recipe.

Whenever I’m craving street food or party-style dishes, I usually make this juicy Homemade Chicken Doner Kebab recipe, crispy Salchipapas recipe, flavorful Mexican Pork Carnitas recipe, or these crunchy Korean Hobak Jeon recipe. I also like serving these easy Air Fryer Zucchini Rings recipe as a simple appetizer or snack.

And if I’m putting together drinks and a full menu for guests, I’ll often pair dinner with this refreshing Original Cuban Mojito recipe, this bold Long Island Iced Tea recipe, or a pitcher of this fruity Bleeding Spanish Sangria recipe. To round everything out, I love adding this tangy French Remoulade Sauce recipe on the side or finishing the table with this striking Mediterranean Black Rice with Squid recipe.

More Delicious Cooking Recipes for Family

Over the years of testing and refining recipes in my own kitchen, I’ve learned that the best dishes combine simplicity, reliable techniques, and bold flavor.

The recipes in this collection are the ones I personally return to again and again—whether I’m cooking a quick meal for myself or preparing something special for friends and family.

For dessert, the rich and silky Orange Chocolate Mousse Recipe is one I often make when I want something elegant but easy. Another sweet favorite is the caramelized Trdelnik Slavic Pastry Recipe, inspired by the famous Central European chimney cake. If you enjoy baking, learning how to make syrup for better texture in desserts is useful, and my Inverted Sugar Recipe explains exactly how I prepare it in my own kitchen.

When I want something fresh and simple, I usually turn to the classic Italian Caprese Salad Recipe or a perfectly cooked Simple Poached Egg Recipe. For heartier comfort meals, I often recommend the satisfying Meatball Sandwich Recipe, the creamy Russian Stroganoff Beef Recipe, and the quick weeknight favorite One Pot Pasta Recipe.

I also love sharing traditional dishes from around the world, including the authentic Sorropotún de Bonito Fish Stew Recipe, crispy Chilean Pumpkin Sopaipillas Recipe, and the classic Spanish Cochifrito Segovian Fried Pig Recipe.

Air fryer recipes are another category I cook regularly because they save time while still producing great texture. My go-to options include Air Fryer Pork Ribs Recipe, Air Fryer Chicken Thighs Recipe, Air Fryer Sweet Potatoes Recipe, Air Fryer Baked Potatoes Recipe, Air Fryer Peppers Recipe, Air Fryer Mixed Sandwich Recipe, Air Fryer Toasted Bread Recipe, and Air Fryer Hard-Boiled Eggs Recipe.

For anyone avoiding wheat, my comforting Gluten-Free Lasagna Recipe proves that classic baked pasta dishes can still be rich, cheesy, and incredibly satisfying without gluten.

Gluten free Empanada Dough Recipe 🍕 Fluffy Apple Cake Recipe 🍔 Langos Hungarian Fried Bread Recipe 🌭 Gluten Free French Brioche Recipe 🍟 Madeira British Sponge Cake Recipe 🌮 Chocolate Argentinian Cookies Alfajores Recipe 🌯 Barmbrack Irish Sweet Bread Recipe 🥙 Gluten free Cookies Recipe 🥗 Homemade cream Maruxas Galician Biscuit Recipe 🍝 Japanese Dumplings Gyoza Dough Recipe

American Gluten Free Cookies Recipe 🍜 Gluten Free King Cake Recipe 🍲 Gluten Free Chocolate Cake Recipe 🍛 Extremadura Style Chard Recipe 🍣 Keto Sliced Sandwich Bread Recipe 🍱 Gluten Free Waffles Recipe 🍤 Low Carb Keto Pizza Recipe 🍗 Gluten Free Bread Rolls Recipe 🍖 Flourless Gluten Free Bread Buns Recipe 🥓 Protein Ice Cream Recipe 🥞 Chia Pudding Dessert with Seeds Recipe

Fluffy Cloud Bread Pan Nube Recipe 🧇 Quinoa Bread Recipe 🍞 Schiacciata Tuscan Focaccia Flat Bread Recipe 🥐 Shokupan Japanese Milk Bread Recipe 🥨 Potato Sandwich Bread Recipe 🧀 Homemade Breadsticks Recipe 🍳 Stollen German Dried Fruits Cake Recipe 🥚 French Gingerbread Spiced Cake Recipe 🍰 Gluten Free Pancakes Recipe

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