Marmitako de bonito - Basque bonito stew

Ingredients

• 800 g / 28.2 oz / 1.76 lb white tuna, cut into cubes
• 4 potatoes, peeled and cut into pieces
• 2 carrots, sliced
• 2 medium onions, diced
• 1 green pepper, cut into pieces
• 2 garlic cloves
• 1 tomato, diced
• 80 ml / 2.7 fl oz crushed tomatoes
• 900 ml / 30.4 fl oz fish stock
• 100 ml / 3.4 fl oz white wine
• 1 teaspoon choricero pepper paste
• 1 teaspoon sweet paprika
• Salt and pepper to taste
• Olive oil