Growing potatoes in a bin for Christmas, I forgot to protect against frost. The tops withered away, but there seems to be small potatoes still growing underneath.Can I let them grow on and can I eat them?
The tops being killed means they are dead to about 2 or 3 centimetres below soil level and will sprout from below when the weather improves, and get frosted again. The potatoes will likely not grow much until summer and will turn out knobbly with secondary growth.
So your best bet is to use whatever small tubers you have now.