If we think of Liguria, we think of grabbing our pestle and mortar and some aromatic herbs and nuts and making a batch of pesto, the world most famous basil sauce. But, as is so often the case, living in the shadow of the wildly popular pesto are some less known but equally delicious alternatives. And that’s certainly the case with walnut sauce!

A quality olive oil can lose its goodness over time if not stored correctly. To stop this happening, we’ve put together this collection of simple tips on how to correctly store your olive oil.