In a large bowl mix milk, water, olive oil, sugar, salt, instant dry yeast and egg white.
Add the flour in batches and mix with a wooden spoon until the dough comes together. The dough will be tacky and there is no need to knead it.
Cover and let it sit in a draft free space such as an off oven for 40 minutes to rise.
Sprinkle your surface with flour. Transfer the dough from the bowl to the surface and shape it into a boule. Cover it with a kitchen towel and let it sit for 20 minutes.
Preheat the oven to 400 degrees F and line a baking sheet with a parchment paper.
Mix the egg yolk, yogurt and water in a small bowl and set aside. This will be your glaze.
Place the dough on the baking sheet lined with parchment paper. Brush with some of the glaze and using your fingers, spread the dough into an oval shape with 1/2 inch thickness.
Using your fingers, make indentations on the dough about 1 inch from the edge to make a circle. Then with your fingers make diagonal indentations in two different directions to make diamonds inside that circle. Top with sesame seeds and nigella seeds.
Bake for 25 minutes until the bread is golden.