A few things that I usually look for when I go back to Jakarta (not in any order of urgency)
* Baso or bakso
* Siomay bandung
Believed to be influenced by the Chinese shumai (hence the name). But this siomay is actually served with peanut sauce. It's made with a combination of fish, chicken and shrimp. Ground to paste and mixed with tapioca starch and seasoning. Then shaped and steamed. Some wrapped with cabbage leaves. Served with peanut sauce and side of chilli sauce.
Asinan is almost like salad. A combination of shredded vegetables - cucumber, lettuce, bean sprout, preserved vegetable (hamchoy), carrot. Top of with crackers (kerupuk mie and regular kerupuk). Then drizzled with the dressing. The dressing is made of combination of ground peanuts, chilli, sugar, salt, and vinegar.
Otak in Indonesian means brain. But otak-otak doesn't mean lots of brain. In fact it's a yummy snack made of ground fish, salt, sugar, starch and coconut milk. The mixture is then shaped in a long shaped like a small ruler with a length of 4-5 inches and wrapped in banana leaves. This tiny package of fish is then grilled and served with peanut sauce.
* Soto mie
Mentioned soto in Indonesia and you'll be surprised to know that there multi variants of soto. Sotos are soup with tons of stuffs. Depends on which type of soto, the broth could be clear or could also has coconut milk. It could be beef based or chicken based. The one I'm talking about today is beef based clear broth. When it comes to soto mie, it is usually serves with a combination of rice stick, yellow noodle, slices of beef/beef tendon, thinly sliced tomato,potato, cabbage and risoles (snack pocket with veggies and rice stick noodle).