How To Make Focaccia

Whisk yeast with warm water in a mixing bowl; whisk in 2 tablespoons olive oil, salt, semolina flour, and 2 teaspoons rosemary until thoroughly combined. Mix in 2 1/2 cups bread flour, using a wooden spoon, until dough is too stiff and sticky to mix.

Turn dough out onto a floured work surface. Knead, dusting with remaining 1/4 cup bread flour as needed, until dough is soft, smooth, and slightly elastic, 2 to 3 minutes.

Drizzle dough with 1 tablespoon olive oil, spreading oil over the dough. Knead briefly, about 2 minutes, to incorporate olive oil. Repeat with 1 more tablespoon oil. Knead 2 or 3 more minutes to incorporate olive oil. Drizzle dough with 1 more tablespoon oil and knead in as before. If dough seems too sticky, knead in a little more flour. Knead until dough is soft, smooth, and elastic, 1 to 2 more minutes (7 to 8 minutes total kneading time).