When I peel potatoes I always peel at least twice as many as I need for a meal. If I’m going to invest my time at the kitchen sink peeling spuds, then I might as well make it worth my while. Once mashed, I divide the potatoes into 2 sections – 1 to cool for freezing, and 1 for the main meal. Frozen mash is one of my kitchen secrets because I keep it on standby for busy days or quick suppers. How do I cook the mash once defrosted though? Mash and gravy are one of life’s luxuries and there is nothing like a spoon of mash made with…