Crafting interface.. Shortcuts??

[Frizze]

That exists, right click ingredient and select search for recipe or something like that. It will take you to the 9th tab (the first 8 are the 8 crafting classes) with the recipe for the ingredient.

Triangle button on a gamepad swaps between the searched recipe and the recipe you used to search for it, the same way it swaps between 1-70 recipes and special recipes on the other 8 tabs. There's probably a mouse/keyboard equivalent, but I don't know it.

This, 100%. Search for item by crafting recipe. Then the "go back to what i searched from" option for mouse and keyboard is a button on the interface just above the list of what you searched for. Personally i use these search functions plus type myself a note in the chat bar that is essentially my "shopping list" for anything with more then a couple ingredients(especially when market prices arent good and i know im hunting down a few of them on my own).