Divinity: Original Sin - Crafting Dependency Graphs
Notes:
These should be considered spoilers!
Use your browser's find function (usually bound to Ctrl+F) to search through the graphs.
Each crafting stage has two ingredients.
If only one is shown, you need two of that ingredient. (Use Shift+drag to pull stacks apart.)
If more than two are shown, there are multiple ways of making the item. I'm too lazy to fix the representation right now though, so you'll have to do a little bit of guessing sometimes...
I can't guarantee that this is complete or correct. Use at your own risk!