Mexican Tuna Steak With Avocado Salsa

Ingredients

• 1 tablespoon olive oil
• 1 medium red onion (sliced)
• 1 medium red pepper (capsicum/bell pepper, sliced)
• ⅔ teaspoon sweet paprika powder
• ⅔ teaspoon cumin powder
• A good pinch of red chill flakes
• 1 large garlic clove (diced finely)
• 1 tablespoon apple cider vinegar (or other type of vinegar)
• 1 tablespoon olive oil (or coconut oil)
• 1 tablespoon butter (or ghee)
• 1 teaspoon coriander seeds (or coriander seeds powder)
• 2 tuna steaks (about 150 g each, 1-cm thick, sourced with sustainability in mind)
• 1 lime
• A pinch of sea salt & black pepper
• 1 large avocado (ripe, chopped)
• 2 tablespoons fresh cilantro (chopped, aka coriander in OZ/UK)
• Some lime juice (about half a lime)
• A little pinch of sea salt