Combine flour, yeast, salt, and sugar in a bowl and mix well.
Add warm water and knead into a dough.
Knead the dough for 10 minutes until it becomes smooth.
Place the dough in a bowl, cover with plastic wrap, and let it rise for 1 hour.
Punch down the dough to release the air, then shape it as desired.
Place the dough on a pan greased with cooking oil or on an oven tray.
Bake in a preheated oven at 180°C for 25 minutes.