You can substitute semolina flour for all-purpose flour using ... vital wheat gluten flour (extremely high in gluten). For a gluten-free equivalent, check out corn flour! No, cornmeal is not ...

Yes, you can substitute semolina for polenta in some recipes. There will be differences in texture and flavor. Semolina is made with durum wheat and is not gluten-free or safe for a gluten-free diet.