How do I create menu item for homepage with Showcase theme?


I am using the Showcase theme to create a new account. The home page of the site has my most recent posts. However, when I try to locate that page after navigating to other pages of the site, I cannot get back to that page. I do not see it in my "pages". Therefore, I also cannot make a menu option for it.

I would like to have the posts active on a blog page. How do I make these two things happen?