Toffle from Sâuçá with bananas and Nutella on the side Dish of the Week: Toffles Where: Sâuçá There are an ever-increasing number of Twittering food truck options in D.C. peddling frozen yogurt, pizza, cupcakes and the like. But my new favorite truck offerings are toffles, from the Sâuçá food truck. Toffles are a contraction of the word toffee and waffle, the toffee part being the sugar and butter mixture that is painted onto the…