Marmitako Recipe | Traditional Basque Fisherman's Stew

Ingredients

• 1 1/2 lbs fresh tuna, cut into 1-inch cubes
• 2 large Yukon Gold potatoes, peeled and cut into 1-inch chunks
• 1 large yellow onion, finely chopped
• 1 large green bell pepper, diced
• 1 large red bell pepper, diced
• 2 cloves garlic, minced
• 2 medium ripe tomatoes, peeled, seeded, and chopped
• 1/2 cup dry white wine
• 3 cups fish stock (preferably homemade or high-quality)
• 1/4 cup extra-virgin olive oil
• 1 teaspoon smoked Spanish paprika (pimentón de la Vera)
• 1 bay leaf
• 1/2 teaspoon freshly ground black pepper
• 1 teaspoon sea salt (plus more to taste)
• 1/4 teaspoon cayenne pepper (optional, for heat)
• 1 tablespoon chopped fresh flat-leaf parsley (plus extra for garnish)
• Zest of 1 lemon
• 1 tablespoon sherry vinegar