1. Heat your Ooni oven to roughly 370°C.
2. Preheat the cast iron pan in the oven for 5 minutes.
3. Rub olive oil and kosher salt on both sides of the salmon.

4. Cut lemon in half and set aside.
5. Remove the cast iron pan from the oven and place the salmon on it, nestling the two halves of the lemon, cut side up, next to the salmon.
6. Put the pan back in the oven and cook for 6 minutes.
7. Remove the pan from the oven and check that the salmon is cooked through.
8. Using a fish spatula (or regular spatula), remove the fish from the pan and transfer to a plate, taking care to keep the crispy skin intact.

9. Once the salmon is on the serving plate, use your tongs to juice the lemons on top of the fish.
10. Garnish with a slice of lemon and serve.