There’s something very comforting about upside down cakes. Maybe it’s their rustic appearance, homey simplicity, or a possibility to eat them warm, almost right from the oven. There’s probably a thousand of variations on this theme. And I find most of them being quite good; yes, even the one with canned pineapple rings on the top (ok, I, myself, always use fresh ones). Sometimes, though, these cakes can be a bit too sweet. Well, this is not the case with the rhubarb – it’s sour enough to balance the brown sugar sweetness perfectly. As for anise, it goes miraculously well with the rhubarb. And even if you are not very fond of the licorice flavor, as I am, still – give it a try. The anise flavor is very subtle here, it just leaves you puzzled about what is in this cake.