Homemade Artisan Crackers

Bahan-bahan (75 porsi)

• 2 cups (250g) all-purpose flour, plus more for kneading and rolling
• 1 teaspoon granulated sugar
• 1 teaspoon salt
• 1/2 teaspoon onion powder
• 1/4 tsp garlic powder
• 1 Tablespoon finely chopped fresh rosemary or other add-in (see Notes)*
• 2/3 cup (160g/ml) water
• 3 Tablespoons (41g/45ml) extra-virgin olive oil, plus more for brushing on top
• flaky sea salt, for topping