On Feb. 13, Publix threw a new offering into the official bread mix with its soft sub roll. It joins Italian five-grain, whole wheat and hard white options. So what’s a “Pub sub” lovah to do?

The pork shoulder braises on the hob and transforms to tender shreds that can be piled into a soft roll. With sweet potato fries and spicy coleslaw, this American classic is complete. To make the ...