I believe that God had to have created evil, because from the beginning, God knew that Adam and Eve would fall to temptation. God knew that He had to send a Savior one day to rescue the entire world.
But who knows? God might have created evil but evil may have been good, because God can only do good, even though He is all-powerful. Here's a proposal I have and this is totally inspired by what God is saying to me right now, I don't have any documented evidence of it. anyways... what if evil was created good in the beginning, BUT when man came into the world, evil became corrupt and was damning because of the actions of man.
And in reference to a different thread, when talking about John 1:3, the word that often translates into "make" in the english, the greek is more ambiguous, Strong's dictionary states:
γίνομαι
ginomai
ghin'-om-ahee
A prolonged and middle form of a primary verb; to cause to be (“gen” -erate), that is, (reflexively) to become (come into being), used with great latitude (literally, figuratively, intensively, etc.): - arise be assembled, be (come, -fall, -have self), be brought (to pass), (be) come (to pass), continue, be divided, be done, draw, be ended, fall, be finished, follow, be found, be fulfilled, + God forbid, grow, happen, have, be kept, be made, be married, be ordained to be, partake, pass, be performed, be published, require, seem, be showed, X soon as it was, sound, be taken, be turned, use, wax, will, would, be wrought.
Therefore, God's creation is more than just a cooking recipe that turns out to be a good cake, it's beyond all of our comprehension.