In principle I find the idea good to freeze wine leftovers and use them for cooking, but unfortunately I don’t have leftovers if I like the wine ;-)
Links:
Cooking Wine from Wine Leftovers (Clever ideas to DIY!)
=> scroll down to “This idea is so useful! Freeze the wine leftovers for later use in your recipes.”
I don’t know where the picture is from, but I found more when searching for ‘Frozen wine leftover’.