Proof the yeast: In a mixing bowl, stir together 1/3 cup warm water, granulated sugar, and active dry yeast. Allow the mixture to proof for about 5 minutes, or until foamy.
Mix wet ingredients: Whisk olive oil and yogurt into the proofed yeast mixture.
Add dry ingredients: Add all-purpose flour and fine salt into the wet ingredients. Mix with your hands or a spoon to form a rough dough. If there is still some dry flour at the bottom of the bowl, add in extra water as needed, 1 tablespoon at a time, stirring between additions, until there is no dry flour left.
Knead the dough: Lightly knead the dough for about 5 minutes, or until smooth. I like to knead directly in the bowl, but you can knead on a clean surface if you prefer. The dough should be on the slightly firm side — not overly soft and sticky.