While homemade tortillas don’t require a plethora of ingredients or a time-consuming process — throw together some water, flour, oil and salt and cook, basically — it’s not so easy when it comes to churning out millions of tortillas daily. That’s why Chipotle is working on a new formula that would cut the ingredients list down from 11 to just those four, but allows the company to mass-produce the tortillas at the same time. [More]