1. Fire up your Ooni pizza oven, aiming for 425°F (220°C) on the baking stone inside.
2. If cooking with gas: Keep the oven at its lowest setting.
3. If cooking with wood/charcoal: Aim for a low flame, using a charcoal bed if possible.
4. Evenly coat the skillet with vegetable oil and place it inside the oven to preheat (roughly 5 minutes, or until the pan reaches 375°F (190°C).
5. Sift the flour and salt into a large bowl and make a well in the center.
6. Carefully remove the pan, pour in the batter and immediately return it to the oven.
7. After 2 minutes, the batter will begin to rise.
8. Remove the pan and serve immediately.