Can I make this sauce in advance?

[Bodenbabe]

Every Christmas I make this recipe - a gorgeous cranberry and red onion marmalade. I normally do it 2 days beforehand but I'm wondering if I could do it now if I put it into sterilised jars and vacuum sealed it. It doesn't have much sugar or vinegar to act as a preserving agent, but maybe you keep anything in a jar for several weeks if it's sterilised and sealed?

Any ideas? I have a spare hour today and really want to make it now Thanks!

I would, it has a fair bit of alcohol that should help preserve it too. But I would keep it in the fridge, I think.

Oh yes, I forgot about the alcohol! I think I will chance it, thanks.