Small Batch Sourdough Focaccia

Bahan-bahan (1 porsi)

• 24 grams mature starter (see note)
• 97.5 grams water
• 86 grams 00 flour (see note)
• 50 grams bread flour
• 2.5 grams sea salt (plus extra to finish)
• 3.5 grams extra virgin olive oil (plus extra to finish)
• rosemary (optional)