Mushan Dumpling Stack

Rice Flour and 100 Year Soy Sauce are sold by Nam Ironpaw for 1x Ironpaw Token each.
Ginseng is sold by Sungshin Ironpaw for 3g50s each.
Perfect Preservatives are also sold by Sungshin Ironpaw for 5s each.
Scallions you'll have to grow at the ranch or buy from AH (alternatively, you can farm them from some mobs, which I wouldn't recommend since the drop rate is low).
Wildfowl Breasts are dropped from birbs.

You can learn to craft Mushan Dumpling Stack in Valley of the Four Winds (Pandaria) for a cost of 4 silver. You must have 60 points in Pandaria Cooking to purchase the recipe.
Location of [npc=58715] /way #376 52.6 51.6 Yan Ironpaw

• Nam Ironpaw: Rice Flour (1 * lots of gold/time for Ironpaw Token) and 100 Year Soy Sauce (1 * lots of gold/time for Ironpaw Token).
  
• Sungshin Ironpaw: Ginseng (10 * 3g 50s = 35 gold) and Perfect Preservatives (10 * 5s = 5 gold).
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• AH or Farm: Scallions (low drop rate from mobs); Wildfowl Breasts (bird mobs that fly in flocks often drop 2-3; cranes west of HalfHill ).

If you want to figure out how much you need/can make, you can make a copy of this Google Sheet and fill in your inventory: https://docs.google.com/spreadsheets/d/1DyAjfSlgfFYwSixrmkiivMC6Y4vB4YnML7s8hCH1WY0