In the cheese plank shop.
You can buy Anderson Jackson plank hardwood at Knoxville,Memphis and Nashville.
You will receive gingerbread cheese. This cheese was used during the 2009 Christmas event.
mctweb.com
You can buy one on the Grand Exchange, or pick it up in the Wilderness.
A cheese shop.
Make in a crafting table; plank,plank,plank book, book, book plank, plank,plank
That would depend on the thickness of the plank. It would also vary, depending on the type of wood, and where you buy it (what country, for instance).
depending what cheese you want
Sells cheese to people who wants to buy it.
I am not sure why you need to buy melted cheese since you can certainly buy solid cheese and then melt it yourself, however, yes, it is possible to buy melted cheese. In a Spanish or Mexican restaurant, melted cheese is called quesa fondata; in a French restaurant it is called fondue.
Euro Food Mart & igourmet.com
plank