Take the number 1 subway to Jagalchi.
Here's really good directions for the stuff...and it was a 2 stop shop.
Take exit 7
Walk to the corner and turn left.
Walk about 3 blocks. Here are some land marks on your way. You'll pass Outback Steakhouse and Hagen Daaz both on your right, and Lotte Super on your left. You'll cross the pedestrian street and then a dangerous looking, crowded, chaotic intersection. Pass the first Kukje Underground Shopping Center entrance. It has a brown sign that says "Art Street" in English. Before you get to the next Kukje Underground entrance there is a small street. TURN LEFT HERE.
I saw 3 baking supply stores. The first one is "Homebaking" on your right. It's very small with lots of stuff. Mom and pop type operation. Nice people.
The next is "Baking Plaza" also on your right it's much bigger and has more stuff arranged in a tidy, organized manner.
These shops have all your baking/cooking needs...including vanilla extract, and even vanilla pods!
Ovens at himart for 60,000
Get cookin!