My cabbages froze, now what?

So, I planted a Fall crop of cabbages this year and they took forever to head-up.  Now I've done it and pushed the growing season a bit too far trying to get bigger heads.  
Thanksgiving holiday and other life events sidetracked me and I didn't get around to harvesting them in time before we had a temps into the low 20s. I just checked on them and lets say the heads are nice and 'firm' now (translate: frozen solid).

Seeking advice on my best course of action here. I wanted to make cole slaw with them, or perhaps try doing sourkraut, not sure if this will be a good option now that they froze. My current plan of action is to harvest them, let them thaw out in the fridge and see how they hold up. Worst case scenaio, I figure I'll blanch them and refreeze for soup.

Just wondering if anyone here has had similar experience and can offer some sage words of advise.

How many heads and how hard of a freeze.  If in question, harvest one and peel off the affected leaves.   You may be in pretty good shape.

I believe most if not all cabbage varieties can stand a bit of frost, so I agree with John.  They ought to be fine for sauerkraut and coleslaw.  I've got several Savoys left out back that went through a week of around -3C to -5C and they just shrugged it off;  we had one a couple days ago and it was perfect.  In fact, even better than usual as there were no slugs hiding in the inner leaves (maybe just a coincidence though).

John F Dean wrote:How many heads and how hard of a freeze.  If in question, harvest one and peel off the affected leaves.   You may be in pretty good shape.

Thanks for the input, fellas!

I have half a dozen or so to harvest. I just checked the weather channel records and I guess it wasn't as bad as I feared, maybe mid 20s overnight. Week ahead is forecast to be in the low teens though, so I'm going to harvest them before they take another hit. I'll report back on how I make out.

Worst case you could leave them out, deer will eat crucifers. 4 years ago I left some back row sprouts out, the deer dug through the snow and ate them down to the soil stems and all, variety Catskill. Upside was doe and skips draw in the bucks, I'll trade some sprouts for venison any day

Hi Pete,

How did the cabbage turn out?

Hi John,

Good news -  I ended up harvesting those cabbages and they did just fine after I let them thaw out in the fridge.  

And thanks for the reminder ...I've been pre-occupied with work and it slipped my mind that I still needed to process them, LOL.
I took half of the cabbages (about 2 lbs) and made a batch of slaw using my favorite Classic Coleslaw Recipe.

I forget exactly which variety I grew, but they should've been around a 65 day variety. However, these had been growing for nearly 90 days and I had mixed results. I think I'm largely to blame though, as I really didn't do much in the way of adding any compost or other amendments when planting, resulting in somewhat stunted growth. In comparison, the Spring planting yielded 4lb heads!

in any case, I'll chalk this up as a victory. It's my first successful Fall planting of cabbage and hope to do it again next year.

Cheers!