PHX Beer Co. is probably best known for its craft beer, but they also make first-rate thin crust pizzas cooked in black iron pans. According to Richard Stark, PHX Beer Co. director of hospitality, black iron pizza was inspired by his late aunt and uncle’s pizzeria in Baltimore. Stark, who is the former CEO of NYPD Pizza, shares PHX Beer Co.’s mashed potato pizza recipe, which came from a pizza he tasted while vacationing in...