finding this recipe which seemed pretty much what I was looking for. Two shopping trips were needed: one to purchase things like bittersweet chocolate and unsweetened cocoa powder, and the other to purchase ramekins, which we did not own until Saturday.
If you're a chocolate fan, this is the dessert for you. It takes about twenty minutes to mix up and twenty minutes to cook.
And yes, there's ice cream on the plate (and cocoa. Tim is the artist). You actually need the ice cream to sort of cut the overwhelming sweetness of the volcano. But man, is it good.
Keep in mind, if you're going to try that recipe, that we made 2/3 of the batch and had enough for two 8-ounce ramekins and maybe a half of the third...not the four we were expecting. YMMV.