Nan-E Barbari (Persian Flatbread)

Ingredients

• 1 2/3 to 1 3/4 cups (379g to 397g) water, lukewarm*
• 2 1/4 teaspoons active dry yeast or instant yeast
• 4 cups + 3 tablespoons (510g) King Arthur Unbleached Bread Flour
• 1 1/2 teaspoons (9g) salt
• semolina flour, for dusting (optional)
• *Use the smaller amount of water in summer, or when it's humid; the larger amount during the winter, or in a dry climate.
• 2 teaspoons King Arthur Unbleached All-Purpose Flour or King Arthur Unbleached Bread Flour
• 1/2 teaspoon sugar
• 1/2 teaspoon vegetable oil
• 1/3 cup (74g) water, cool
• 1 teaspoon sesame seeds
• 1 teaspoon nigella (black onion) seeds*
• *Substitute poppy seeds or the seeds of your choice if you can't find nigella seeds.