The ones with that glueyconsistency, like the inside of a Pop-Tart.
2
Bring to the boil and simmer for 3-4 hours -you will see the broth take on a glueyconsistency.
3
Stickiness after cooking is caused by surface starch that dries out and cools down after the noodles have been drained, and develops a glueyconsistency.