Amazing roast potatoes

I want to know how to make the potatoes in the picture. That looks amazing. Do you cut them almost all the way through and then roast them? I have been making oven roasted potatoes for years and love them. I vary the seasonings to change them up.  -  12 Feb 2013  (Review from Allrecipes US | Canada)

I was looking for a lighter potato recipe and this turned out nice! I added a little less salt then called for, and added some dried rosemary for a little extra flavor. I had to add a little more olive oil halfway through cooking so they didn't get too dried out, but they ended up delicious! Easy, healthy side dish!  -  25 Aug 2012  (Review from Allrecipes US | Canada)

The potatoes in the picture look like http://allrecipes.com/recipe/roasted-fan-shaped-potatoes/detail.aspx, which I've had in my recipe box for years. To make the fan effect, I've found the easiest way is to scrub and peel (or not peel!) a baking potato, then line up the potato parallel between two wooden spoons and cut them thinly until the knife is stopped by the wooden spoons from cutting through the bottom of the potato. It's easy and it looks pretty cool. As for this recipe, it works very well, I'm making it for supper tonight, in fact. I add fresh or dried rosemary to the olive oil, though, then every 15 minutes I pull them out and give them a stir. Usually they're done after 45 minutes.  -  16 Jul 2013  (Review from Allrecipes US | Canada)