Add yeast and sugar to half of the lukewarm water; mix well and keep aside till it froths up.
Pile both the flour and salt on a clean surface or in a bowl and add the yeast liquid. Use a fork and circular movements slowly bringing in the flour from the sides. Add the remaining water as required.
Initially the consistency will be that of a stodgy porridge. Continue mixing in the dry flour until the dough begins to come together.
Dust your hands with flour and knead the dough well. Use forward and backward movements, using the left hand to stretch the dough towards you and the right hand to push it away from you. Continue to knead for about 10 minutes till you achieve a smooth springy dough.
Brush the insides of a bowl with olive oil and place the dough inside. Cover with a tea towel and place in a warm spot in the kitchen for 30 minutes to 2 hours (ideal).
The dough is ready to use when it has almost doubled in size.
Note: The dough can be made a day before and refrigerated. Bring to room temperature before rolling out. The dough can also be frozen upto 3 months in an airtight container. To defrost, place in the refrigerator overnight and then bring to room temperature.