Anyone who knows their onions will see that 17pence for a kilo of good onions is a bargain. Now at LIDL with other reductions on fruit and veg, but none as good as this. It even says on the label that onions can help prevent heart disease.
EDIT - sorry this deal does not seem to be nationwide, this was in Trowbridge. LIDL do seem to change prices on an almost daily basis on the fruit and veg, so stock up when cheap. These are just ordinary white onions, the purple ones were much dearer.