Replace the usual basil with watercress in your pesto for a zesty and peppery pasta-perfect sauce. Just blend a cup of ...

Slice baguette in half lengthwise and spread bottom half with equal parts mustard and mayonnaise. Layer with bacon, egg, and watercress. Season with salt and pepper.

No wonder, then, the recent outrage on social media about a Posh Egg Mayo & Watercress Sandwich being sold by M&S for £6. While we may be comfortable spending over a fiver on a handmade deli ...