6 tablespoons (72 grams) extra virgin olive oil, more for drizzling
1 tablespoon plus 1 teaspoon (4 grams) fresh rosemary leaves
2 teaspoons (8 grams) active dry yeast
1 2/3 cups (207 grams ) all-purpose flour, more as needed
2/3 cup (85 grams) fine cornmeal
5 tablespoons (75 grams) granulated sugar
1 1/2 teaspoons (6 grams) salt
2 1/4 cups (350 grams) Concord, black or red grapes
1/2 cup pine nuts 29 grams, optional
Flaky sea salt, for sprinkling