My husband and I just discovered historic Occoquan the other day and wandered in to the Coffee House of Occoquan because they had a coupon in the Entertainment Book (50% off order!)
We enjoyed very nice lattes. While we didn't have any dessert, their dessert display had some very tempting items, including a white chocolate blueberry cake.
The coffee shop also is home to a gift shop. We looked around pretty quickly and most of it was little tchotckes. In the front, though, they had several tables for eating and reading the paper.