In a bowl, combine 2 cups (16 fl oz/500 ml) water, the 1¾ cups (7 oz/220 g) flour, 1½ tablespoons oil, the rosemary, ¾ teaspoon salt, and a generous amount of pepper. Whisk until smooth. Preheat the oven to 325°F (165° C). Line 2 large baking sheets with parchme