Two Hamilton girls make it big in the US...with Cupcakes - Video

The two sisters look so pretty in pink.

One is fighting a cold, the other perhaps exhaustion, but the combined enthusiasm between Katherine Kallinis and Sophie Kallinis LaMontagne, both wearing matching baby-soft pink pashmina scarves, is, quite simply, infectious.

Famous for their hit TLC series DC Cupcakes, the girls are in town to talk sweet treats, the reality of starting up a cupcake company on the proverbial wing and prayer, and to talk about their latest project — their book, The Cupcake Diaries (HarperCollins).

And to explain just how two Hamilton, Ont. girls ended up at the helm of one of the most successful U.S.-based confectionary companies in an industry already burgeoning with cupcake specialty shops, not to mention a TV series now going into its third season.