We were sorting through jams and chutneys over the weekend and spotted a jar with a lid bulging outwards. It was the classic sign of fermenting contents. The jar was courgette and blackpepper chutney. We were rather surprised by the recipe we found as it contained wine, not vinegar. Since we had a surplus of courgettes, we felt it was okay to try it out. All the other jars worked but for some reason, this one decided to ferment. It fizzed over like a shaken bottle of champagne when I opened it!