Guild Wars 2

So i want to understand how to create/drop this item: http://www.gw2db.com/items/68060-recipe-satchel-of-rampagers-exalted-armor-exotic. Not the item that the recipe teaches, but the recipe itself.
I checked it in the trading post and there’s only 1 available for 19 gold. Do i need to put its ingredients on the mystic forge?
And can i simply discovery it in the tailoring station with the ingredients? i’m confused

http://wiki.guildwars2.com/wiki/Mystic_Forge scroll down to satchel recipe. its not worth doing

applekwisp.2139:

http://wiki.guildwars2.com/wiki/Mystic_Forge scroll down to satchel recipe. its not worth doing

Oh… wow… thxx a lot! How the hell did i miss this part of wiki? -.-

The difference in items needed between crafting a box/satchel or armour and crafting the individual items was corrected at the beginning of December (according to patch notes – I haven’t tried it).

http://wiki.guildwars2.com/wiki/Game_updates/December_2012 (Items update December 3rd)