walnut ink.....

I have a whole pack of the powder. What do I do with it, and how do I use it best?

If I crinkle up a piece of card to stain for that distressed look, how best do I flatten it out again?

Thankyou for your help.

You can just iron it if you want it completely flat or smooth it out with your hand if you still want it slightly bumpy.

I have a book where they show this technique and they iron it as Rebecca said. It comes out looking like handmade paper (similar texture).