Grape and Rosemary Focaccia | culture: the word on cheese

Ingredients

• 1 package (2¼ teaspoons active dry yeast)
• 2 cups plus 2 tablespoons lukewarm water
• 7 tablespoons olive oil (divided)
• 1 tablespoon koser salt (plus more for sprinkling)
• 5 ½ cups unbleached all-purpose flour
• 1 cup red grapes (rinsed, dried, and halved vertically)
• 2 tablespoons chopped fresh rosemary