Prepare the Dough: In a large mixing bowl, sift together the all-purpose flour, instant yeast, kosher salt, and granulated sugar. Gradually add room temperature water, mixing with a wooden spoon until a shaggy mass forms. Knead for 8-10 minutes until smooth and elastic.

Let it Rise: Transfer the kneaded dough to a greased bowl, cover with a kitchen towel, and let rise for 1 hour until doubled in size.

Divide and Shape the Dough: Punch down the dough, divide into two pieces, shape into balls, then flatten to 1/2 inch thick circles. Let rest for 20-30 minutes.

Preheat the Oven: Preheat your oven to its highest setting (around 225°C/440°F).

Prepare the Egg Wash: Whisk egg yolk, yogurt, and a splash of water in a bowl until smooth.

Add the Finishing Touches: Indent each round of dough, brush with egg wash, and sprinkle sesame seeds and nigella seeds.

Bake the Bread: Place the dough on a parchment-lined sheet. Bake for 15-20 minutes until golden brown.

Cool and Serve: Remove from the oven, cool on a wire rack, and serve warm.