In a large mixing bowl, whisk together the flour, yeast, salt, and sugar.
Add the warm water and vegetable oil to the dry ingredients, and mix until a dough forms.
Knead the dough on a floured surface for about 10 minutes, or until it becomes smooth and elastic.
Place the dough in a lightly oiled bowl, cover it with a damp towel, and let it rise in a warm place for about 1 hour or until it has doubled in size.
Preheat your oven to 400°F (200°C).
Once the dough has risen, punch it down and divide it into 8 equal pieces.
Roll each piece into a ball, and then flatten it into a disc shape.
Place the discs on a baking sheet lined with parchment paper, and sprinkle sesame seeds on top of each one.
Bake the bread for 15-20 minutes, or until it has turned golden brown.
Remove the bread from the oven and let it cool before serving.
Enjoy your homemade vegan Turkish bread