Dissolve the yeast and the sugar in 1/2 cup of warm water in a small bowl and set aside for about 10 minutes for the yeast to become active and bubbly.
In a large mixing bowl add the proofed yeast and the remaining 1 1/2 cups of water, olive oil, and salt and mix well.
Add one cup of the flour to the bowl and whisk until the flour is well integrated into the water mixture. Continue adding the remaining flour one cup at a time and whisking in each step. At some point when the dough begins to form, you will have to put the whisk away and switch to a spatula or use your hands to form the dough.
Keep in mind that It is always better and easier to have a wetter dough that you add more flour to than to have a dry dough that needs more moisture.
Once all the flour has been added, assess whether the dough is too sticky. If so then add a little more flour at a time so that the texture of the dough is kneadable and it won't stick to your hands.
Lightly dust a working surface and knead the dough for about 15 minutes. The dough texture should be stretchy and soft to the touch with a gentle bounce back when poked with a finger.
Sprinkle a small amount of flour into a clean large bowl, covering the entire surface area of the bowl, and place the dough in the bowl. Cover with a slightly damp towel or plastic wrap and allow to rise at room temperature for 2 hours. The dough should then be doubled in size and somewhat sticky to the touch.
Sprinkle a small amount of flour onto your working surface and place the dough on top. Cut the dough into 3 equal pieces and roll each piece into a round ball without working the dough too much.
Place the dough balls into a lightly floured bowl and cover with the same towel or plastic wrap and allow to rise for an additional 60 minutes.
Prepare the glaze by mixing the flour, baking soda and water in a small bowl until the flour has been dissolved and slightly thickened. Set aside.
While the dough rises for the second time, preheat the oven to 500℉ and lower the oven rack to the lowest position. If you are using a baking stone place that in the oven as well. Otherwise, you can bake the bread on a regular baking sheet and raise the oven rack a notch higher so that the bottom of the bread won't burn.
Sprinkle a small amount of flour onto the working surface and place the dough balls on top of that. Using your hands or a rolling pin, stretch, press and flip each dough to form a 9X6 inches oval shape dough.
If using a pizza peel lightly flour the surface and lift the dough and place on top of the pizza peel. Otherwise, you can place the dough on parchment paper instead and then transfer onto a baking sheet.
Using the tips of your fingers make 4 rows of indentations along the length of the bread. Brush the top of the dough lightly with the glaze and sprinkle the sesame and nigella seeds on top.
Swiftly slide the dough off of the pizza peel and onto the baking stone.
Bake for 15 minutes or until the bread has fully risen and has turned into a crispy golden brown loaf.
Remove from the oven. Once cooled, store in an airtight container.
Barbaree naan is best served hot. Otherwise, it can be stored in the freezer in an airtight bag for a couple of weeks.