Electrum seed is sufficient to recreate your wallet. So you could use electrum to generate a seed, write it down somewhere and you have your cold wallet. But there are risks with this method. You could lose the paper with the seed, or it could burn, or someone could use it if the paper is found.

That's why i created seed guardian. You split electrum seed, let's say in 3 shares with a threshold of 2. You write down the 15 words of each share on a different paper, and hide each paper in a different place. For example, one on an encrypted usb drive, one with your papers at home, one at work. If one of these papers is lost or burnt or stolen, you still could recreate the seed with the two others. If someone find one of the three papers, he can't do anything with it.