Every Day I'm Truffling

To complete this achievement you have to do the following:

• 
  
• Loot [item=162000] from [object=293350] in Briarback Kraul.
  After that you'll be able to buy it for 25 [item=155838] in Brennadam or Warfang Hold
  /way Stormsong Valley 58.68 70.34 Hobbs Alliance Pig Nose vendor
  /way Stormsong Valley 50.94 33.71 Sanya Wraithschilde Horde Pig Nose vendor
• 
  
• [item=162000] is active only for 15 minutes, you may not find all the truffles in that time.
  Farm about 50 [item=155838] in Briarback Kraul.
  30-45 minutes should be enough to do the achievement.
  
• 
  
• Search for truffles, you can find them all around Stormsong Valley under the trees in the bushes.
  They are very tiny and easy to miss, they don't appear on the minimap and are not highlighted.
  If the area under the trees is heavily shadowed by plants you have to wiggle your mouse around to be sure there is no truffle there.
  First person view also helps.
  There are 4 types of truffles: [item=162012], [item=162011], [item=162010], [spell=275911]
  There are no predefined spawn locations for certain truffle. So you have to go around all spawn points i have found.
  List of truffle spawn points under the spoiler!
  Spoiler

  
  Use in Stormsong Valley:
  /way 53.04 56.99 (SubZone: Drowned Lands)
  /way 41.19 50.78 (SubZone: )
  /way 39.86 50.55 (SubZone: Briny Flats)
  /way 37.15 67.15 (SubZone: Roaring Highland)
  /way 36.65 67.08 (SubZone: Roaring Highland)
  /way 22.70 74.79 (SubZone: Beryl Meadow)
  /way 59.83 38.53 (SubZone: Sagehold)
  /way 46.64 66.45 (SubZone: Burton Farmstead)
  /way 49.94 67.67 (SubZone: Burton Farmstead)
  /way 64.38 69.23 (SubZone: )
  /way 60.30 29.18 (SubZone: Tidebreak Summit)
  /way 53.73 31.07 (SubZone: )
  /way 47.45 42.93 (SubZone: The Clearcut)
  /way 48.83 45.27 (SubZone: )
  /way 48.52 48.34 (SubZone: )
  /way 60.57 52.56 (SubZone: Windshorn Hills)
  /way 62.58 45.15 (SubZone: Tidebreak Foothills)
  /way 43.43 62.89 (SubZone: Roaring Highland)
  /way 45.26 47.95 (SubZone: )
  /way 60.04 27.93 (SubZone: Tidebreak Summit)
  /way 53.84 31.33 (SubZone: )
  /way 60.65 40.25 (SubZone: Sagehold)
  /way 62.59 45.15 (SubZone: Tidebreak Foothills)
  /way 60.57 55.90 (SubZone: Windshorn Hills)
  /way 58.25 57.01 (SubZone: Eckhart Lodge)
  /way 56.08 56.30 (SubZone: Brennadam Square)
  /way 67.87 57.64 (SubZone: Mariner's Strand)
  /way 70.55 54.90 (SubZone: The Brineworks)
  /way 51.70 53.17 (SubZone: Drowned Lands)
  /way 50.60 27.18 (SubZone: Seawatch Point)
  /way 52.66 29.44 (SubZone: Seawatch Point)
  /way 52.40 31.98 (SubZone: Warfang Hold)
  /way 62.77 17.32 (SubZone: )
  /way 58.06 60.10 (SubZone: Brennadam Square)
  /way 63.13 47.61 (SubZone: Tidebreak Foothills)
  /way 69.08 54.75 (SubZone: The Brineworks)
  /way 43.57 51.43 (SubZone: Deadwash)
  /way 65.93 72.74 (SubZone: )
  /way 70.42 63.42 (SubZone: )
  /way 57.59 31.64 (SubZone: )
  /way 51.15 29.13 (SubZone: Seawatch Point)
  /way 57.86 51.44 (SubZone: Windshorn Hills)
  /way 61.55 35.24 (SubZone: Tidebreak Summit
  /way 41.05 48.27 (SubZone: )
  /way 27.05 67.00 (SubZone: Millstone Hamlet)
  /way 32.46 63.05 (SubZone: Millstone Hamlet)
  /way 42.26 62.61 (SubZone: Roaring Highland)
  /way 54.61 33.16 (SubZone: )
  /way 42.30 50.06 (SubZone: )
  
  
  
• 
  
• Finaly to complete the achievement use truffles in following order:
  [item=162011] -> [spell=275911] -> [item=162010] -> [item=162012]
  Remove all truffle buffs on you before starting, if you don't use [item=162011] first you'll not get it's buff.
  3 of them you can store in bags, so start consuming only when you found them and standing near [spell=275911]
  May be bugged for some people
• 
  

Every Day I'm Truffling video: https://www.youtube.com/watch?v=RSC0vilU11U

Yet another stupid, time wasting, annoying, bugged achievement.

I found that setting environment detail and ground clutter to the minimum setting helps to find the tiny truffles. Unfortunately it won't make the violet truffles work though.

1+ hour deep I realised by looking at the screenshots here. Put Graphics to lowest possible! 10 min later I was done :)