If you do not use smoked brie, add a sprig of rosemary to the milk when you simmer to give it a little extra flavor. Remove the rosemary before you bake this.
Use a mandoline to slice your potatoes. This keeps them even so they cook evenly.
If you don't have Yukon Gold potatoes, you can use russet potatoes, but you'll likely want to peel these before slicing. Yukon Gold have such thin skins that you don't need to peel them.
For more tips and tricks, be sure to read the full article above.