How do I pull up a single template in a standard VB page?

[yoyoyoyo]

lets say I have a template called peanut_butter, how do I pull up just that single template within a basic vb page in 3.5? I know in 3.0 you had to create a custom php page as well as the template, but how do you do that easily in 3.5? Isn't there a simple php call like index.php?template=peanut_butter? I know that isn't it, but I seem to recall seeing it, and can't remember what it is exactly. Any help is appreciated