In a large bowl, combine warm water and yeast. Let sit until foamy, about 5 minutes.

Stir in sugar, salt, and bread flour. Mix until a dough forms.

Knead the dough on a floured surface for 8-10 minutes until smooth and elastic.

Place the dough in a greased bowl, cover, and let rise in a warm place for 1 hour or until doubled.

Punch down the dough and divide it into four equal pieces. Shape each into a round ball.

Place on a parchment-lined baking sheet, cover, and let rise for another 30 minutes.

Preheat the oven to 400°F (200°C).

Bake the bread bowls for 20-25 minutes or until golden brown and hollow-sounding when tapped.

Cool slightly, then cut a circle out of the top and hollow out to create a bowl.