Slice the bread.
Grill the slices on both sides (you can also use a normal grill).
Take a clove of garlic and rub it against the crusty surface of the slices. If the slices have been properly grilled, the garlic will wear down in seconds, like you were rubbing it against sand paper.
Add a generous amount of olive oil over the slices.
Season with salt.
Here is the fettunta and certainly you in for a treat.