1. Preheat the oven to gas 9, 240°C, fan 220°C and put a large, ovenproof frying pan inside to heat up. Make up the batter with 3 of the eggs and 150ml cold water, following pack instructions, then whisk in the cheese and half the chives.
2. Carefully remove the pan and add half the oil; return to the oven for 3 mins. Pour in the batter and bake for 20 mins until pufed, golden and crisp.
3. Heat the remaining oil in a separate frying pan over a medium heat. Crack in the remaining 4 eggs and fry for 2-3 mins or until cooked to your liking.
4. Place the smoked salmon and sliced avocado, if using, in the middle of the pancake to serve family-style, if you like, or cut into wedges and divide between plates. Drizzle over the lime juice, top with the eggs, then scatter with the remaining chives and extra black pepper. Drizzle over hot sauce and serve with lime wedges, if you like.
Tip: Use the free-from batter mix to make this gluten-free, and swap the salmon for crispy bacon if you prefer.
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