Nation’s biggest pizzerias fire up fight over fast-food lovers’ dollars

A tastier sauce, a better cheese combination, flavored crust, olive oil, a new crust thickness.

Those are some of the ingredients needed for an improved pizza recipe — and for an epic pizza battle.

America’s largest pizzeria chains are duking it out across counters and doorsteps, as ever-budget-conscious people, still recovering from the recession, continue to look for cheap fast food.

The weapons in this pizza war? The country’s second-biggest chain, Domino’s, has a revamped pizza recipe, introduced last December in a much-discussed ad campaign, that has translated into higher sales; for example, its 2010 third-quarter same-store sales were up 11.7 percent over the same period in 2009.

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