We only use olive oil for dressings so a bottle lasts ages. We don’t do much frying but when we do we use rapeseed oil. It’s cheaper, British sourced and more stable than olive when heated.
I can’t recall our most recent prices paid but LIDL is a lot cheaper than Waitrose and seems good quality.
A couple of years ago there was a mustard crisis in France. The wholegrain stuff my OH likes was limited to one jar per customer but in practice it was never even on the shelf.
Driving back Competa > Moraira (CBlanca) on the scenic motorway route skirting North of Granada.
Hotel services/ cafeteria selling locally produced Extra Virgin olive oil @ €19.90 for 2 litres… plastic jars, home made labels. Bought a couple as did my Spanish Residencia friends whom I was with.
I’m assuming that’s cheaper than supermarket prices, and nice to support a local producer near Guadix.