Studio [Blog] Menu Item

With the Studio Theme, I'm trying to add a menu button labeled "Blog" that goes to http://sweetaddress.com/blog/ and shows the, uh, blog the way the demo does. I've done it before on another network, but I can't remember how to do it.

I have one post. I created a Page titled "blog" - It displays the page rather than posts. Settings > Reading options don't seem to work.

Can someone point the way?