Similar in colour to Marmite, the spreadable coffee is sweetened with organic beet sugar and thickened with xanthan gum powder. A 100g tube, which can be purchased online for £13.99, is enough ...

But here, on a slice of sourdough toast in front of me, it looks less like coffee, more like Marmite. Wait, toast? That’s right. Fed up with carrying bulky coffee-making equipment or resorting ...