By Gemma Strong & Nicola Roy Move over mince pies! A brand new festive snack has been discovered – and it’s so cheap and easy to make. Traditionally, people reach for fresh potatoes at Christmas time, ready to roast as the perfect accompaniment to roast turkey. But one reporter has discovered a clever way to use tinned spuds, which retail for just 39p at Tesco, using her trusty air fryer. The Daily Record’s Nicola Roy wanted to find a way to utilise her air fryer, which she purchased earlier this year. And she made a delicious discovery. Here’s how it went… Air fryers are a common feature in…