Pempek or Empek-Empek is a delicacy from Palembang which is made of fish and sago. Pempek is eaten together with a dark sauce called cuka or cuko (in bahasa Palembang). Cuko is produced from adding brown sugar, chili pepper, garlic, vinegar, and salt into hot boiling water.

There are different types of Empek-Empek, the one we ordered were Pempek Kapal Selam (Submarine) which comes with boiled egg wrapped inside the Pempek itself. Other types of Pempek are “pempek telur kecil”, “pempek keriting”, “pempek pistel (or pastel(?)”, “pempek kulit ikan”, “pempek adaan”, “pempek lenjer”, and “pempek tahu”.

The way most Indonesia eat them is by cutting the Pempek itself into small pieces, with the egg noodles, meehoon, and diced cucumber - top it with the cuka (vinegar) soup. It does taste and smells a little fishy, but again it is made of fish.

source : http://www.simplycraving.com/pempek-palembang-fish-cake-dish-from-indonesia-20080502/
pic taken from : http://farm1.static.flickr.com/166/418906010_7fd7d6a69a.jpg