Same, always gave up on the idea of tasting my own after orgasiming, then I discovered stop/start method or edging with cum...
Basically, wank away like you normally would, whatever you normally do that will get you to cum. But, just like edging, you need a little control. You should know the feeling of a building orgasm/ejaculation, the trick is to stop masturbating as that feeling begins. With some practice and control (yes, sometimes it is too tempting to just feel great and release that load but hey, try, it is still feels great if you fail), you can get to the point where you will produce some cum, but not orgasm and loose that will to tase your cum. The cum will (for me) leak out, usually only like one normal spurt or less, it dosen't shoot out like you are blowing a load. I'll then scoop this up and it will go straight into my mouth. Yum! I will do this several times in a session, sometimes 4, 5, 6 times, making cum just for tasting and holding back that orgasm. I'll either have a mouth full of my cum and either swallow it or sometimes I like to spit it back out onto my hand and use it as lube and cover my cock in it (looks great I think seeing a hard cock covered in cum). If I have done a good session of leaking and edging my cum out, when it is time to take my cock to full orgasm, hardly any cum will ejaculate out (usually maybe a drop or two).
Trust me, once you have mastered this technique, you will really enjoy tasting your own cum.
...I'm going to go and have to do this now, made me hard and horny as just writing this.