In the house where I grew up, there were no nachos. In fact, I can't remember ever having nachos until I went off to college, where my favorite near-campus bar served ooey-gooey-drippy-cheesy nachos with beer and free movies a couple of nights a week. I've eaten my share of nachos since those college days, but I don't make them at home, for the same reason I don't bake brownies every day: much too tempting. However, I've been experimenting a lot with coffee syrup while working on the Rhode Island Recipes cookbook, and when I made this slow cooker sweet coffee flank steak, I couldn't help turning it into these unusual nachos. The meat is so flavorful that you really don't need a lot of toppings, but who am I to stop you if you want to add some guacamole or sour cream?