There's almost always a line at Georgetown Cupcake, especially on weekends. But on Oct. 11, the queue had snaked out the door of the cult bakery on Potomac Street and was threatening to block traffic. Perhaps it was spillover from the Taste of Georgetown food festival, which drew more than 10,000 people.  Perhaps it was that the bakery had scored several perfect 10s that week in our Cupcake Wars taste-offs. Whatever the reason, police arrived to help manage the flow. By the end of the day, the eight-month-old bakery had sold 5,000 cupcakes. That's busier than most Saturdays. But only by about 25 percent.

Co-owners and sisters Sophie LaMontagne and Katherine Kallinis, winners of our Cupcake Wars, bake from 5:30 a.m. to 7:30 p.m. most days. And though they allow employees to scoop batter into tins and check the ovens, they pipe the frosting on every single cupcake themselves. On average, the store sells between 2,000 and 3,000 cupcakes Tuesdays through Fridays (up from 800 when it opened in February), 4,000 on Saturdays and 2,000 on Sundays. Do the math: At $2.75 each, that conservatively adds up to sales of more than $38,000 a week and $2 million annually.

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