In a mixing bowl, combine the sourdough starter and warm water.
Add the flour and salt, mixing until a dough forms.
Knead the dough for about 5 minutes until smooth.
Place the dough in a lightly greased bowl and cover it.
Let the dough rise for 1-2 hours at room temperature.
Preheat your oven to 475°F (245°C).
Once risen, divide the dough into two equal portions.
Roll out each portion on a floured surface to your desired thickness.
Transfer the dough to a pizza stone or baking sheet.
Spread pizza sauce evenly on the base, then add cheese and toppings.
Bake for 15-20 minutes until the crust is golden and cheese is bubbly.
Remove from the oven, garnish with fresh basil, and slice to serve.