Foccacia with Rosemary, Parmesan and Sea Salt

INGREDIENTS

package active dry yeast

1 tbsp

sugar

5 cups

all-purpose flour, plus additional for kneading

1 tbsp

kosher salt plus flaky sea salt for sprinkling

1 3/4 cups

warm water

1 cup

extra-virgin olive oil, divided

2 tbsp

chopped rosemary

1/2 cup

finely grated parmesean cheese