No, you can not.
only way is to give your friend an iTune or GooglePlay or Amazon giftcard so they can purchase donuts through their store.
if you are i the US remember that taxes are not included in the donutprice quoted in the game, so if you give them a $10 GC it will not be enough to buy the $10 pack, you need to add $2-3, I think, unsure of the exact tax rate.
*** Is the issue resolved? Please click "Accept as solution" so others can benefit.***
*** Although xp is not required, it is very nice. Give a Kudos by clicking on the XP button if you feel a comment/post/response deserves it. ***
***I do not answer game questions in PMs. ***
+++ This Forum is provided by EA but it is designed as Player helping/advising other Players - meaning we are not employed by EA +++
D'oh! - Em