Note
1: In the bowl of a food processor, mix the flour and salt.
Add the liquid sourdough (or fresh sourdough) and the warm water. Mix until you obtain a homogeneous dough.
Tip: If kneading by hand, use a wooden spoon.
2: Knead your dough for 10 to 15 minutes, until the dough becomes elastic and pulls away from the sides of the bowl.
3: Cover the dough with a clean cloth.
Let rest at room temperature for about 12 hours.
4: Once rested, divide the dough into two pieces and form them into a baguette shape.
Let rise again, covered, for 1 to 2 hours.
5: Preheat your Ooni, aiming for 350 °C (662 °F) on your baking stone.
You can check this quickly, accurately and from a safe distance with an infrared thermometer.
6: On a lightly-floured surface, make diagonal incisions on the top of the loaf with a sharp knife and sprinkle with Corsican herbs or herbes de Provence.
Transfer to a lightly-floured pizza peel.

7: When the oven has reached temperature, launch the baguette into the oven; bake for 1 to 2 minutes, then turn the flames off.
Close the door and bake for another 19 to 24 minutes, until the bread is golden brown and a hollow sound is heard when tapped.
8: Remove the bread from the oven; let cool on a rack.
9: Preheat the Ooni oven to reach 400 °C to 450 °C (752 °F to 852 °F).
10: Cut the baguette in half lengthwise.

11: Spread tomato pulp evenly over both halves of the baguette and sprinkle with myrtle leaves or herbes de Provence.

12: Arrange the slices of pancetta and the pieces of cheese evenly over each slice.

13: Place on a peel, launch and cook for 1 minute in the oven.
14: Remove from the oven, add the coppa and rocket leaves.
15: Serve and enjoy!