Add the yeast to the lukewarm water and let stand for 4 minutes.

In a large mixing bowl, combine the flour, salt, sugar, and fennel seeds, if using.

Gradually add the yeast mixture to the flour mixture and stir.

Continue stirring the flour mixture until it comes together in a ball.

Knead the dough mixture until smooth and elastic.

Cut the dough into 6 equal portions and shape into balls.

Place the dough balls in an oiled mixing bowl, cover, and let rise for 1 hour or until they double in size.

Heat the oven to 425°F.

Flatten each ball into a round approximately 3 inches high.

Place the rounds of dough on a baking tray and bake for 25 minutes or until golden.

Serve whole.