Storing and using up leftover mash Different ways to use leftover mashed potato The BBC good food’s home economist Steffi recommends keeping leftover mash in the fridge for up to three days. You can also freeze it for up to two months. When it comes to defrosting, leave it in the fridge overnight to thaw completely. Potato cakes When cooled, mashed potato becomes pliable and easy to shape. It can be combined with fish – smoked haddock, trout, kippers and salmon work well. Alternatively, use shredded ham, black pudding, chorizo, corned beef or mince, then bind with a little flour and shallow fry. You could even use up a whole other dish at the same time - our cottage pie cakes are the ultimate reusable dish. Black pudding potato cakes with fried eggs & tomatoes Smoked haddock, spinach & potato cakes Smoked trout fishcakes with mushy peas Ham, pea & polenta cakes Kipper fish cakes with watercress mayo Cottage pie cakes Mashed potato pie topping As well as cottage and shepherd's pies, you can spread mash on lots of different pie fillings. You're not likely to have huge amounts of mash left, so rustle up a pie for two, or individual pies for freezing. BBQ beans with mashed potato tops Easy chicken pie Lemon & orange cake Gluten-free baking requires some clever swaps. In this recipe, mashed potato is teamed in equal parts with gluten-free self-raising flour. Your mash shouldn't contain any savoury flavorings for this recipe, and if you’re cooking for someone following a gluten-free diet, double-check any additions made to the mash – some cream cheeses aren’t gluten-free for instance. Lemon & orange cake Taken from the BBC Good Food website http://www.bbcgoodfood.com/howto/guide/love-your-leftovers-how-use- mashed-potatoes Potato pancakes From Irish boxty to Jewish latkes, the potato pancake is a universal treat. In this recipe for dense American-style pancakes, part of the flour is replaced with leftover mash. Serve with bacon and scrambled eggs at brunch. Potato pancakes Croquettes These breadcrumbed fritters are great for a tapas spread. Traditional Spanish ‘croquetas’ usually contain jamón, cheese and white bechamel sauce, but you can also make them with mashed potatoes. This thoroughly British version is a spin on traditional method of using up roast dinner leftovers. Bubble & squeak croquettes Gluten-free lemon drizzle cake This bake doesn’t even require flour – it’s replaced with mash and ground almonds. The result is a moist and dense cake that’ll leave everyone guessing about the surprise ingredient. Gluten-free lemon drizzle cake Vegetarian kofta This North Indian dish is best made with cooled mash. The fried patties are filled with paneer cheese, nuts and lots of spices, and served with a 'gravy' of peanuts and tomatoes. Malai kofta with spicy gravy A thickening agent In very small quantities, mashed potato can be used to thicken traditional gravies and sauces. Use it cautiously as you would cornflour - and make sure it's stirred in very thoroughly. Gravy recipes Taken from the BBC Good Food website http://www.bbcgoodfood.com/howto/guide/love-your-leftovers-how-use- mashed-potatoes Gnocchi These Italian dumplings have a reputation as heavy comfort food but try making a lighter version at home. This recipe states that for optimum results warm mash should be used, so reheat your leftovers in the microwave if you like. However, it's more important to pass the mash through a mouli as any lumps and bumps will show up in the final cooked gnocchi. Serve with a punchy sauce, such as blue cheese, Bolognese or pesto. Villa Valentina's potato gnocchi Soup While mash would work perfectly well in a traditional leek & potato soup, go off-piste with a more adventurous combination. This unconventional chowder recipe takes the classic seafood soup and bulks it out to something altogether meatier. The mashed potato is added as a garnish - don't knock it till you've tried it! Prawn chowder with mashed potato Taken from the BBC Good Food website http://www.bbcgoodfood.com/howto/guide/love-your-leftovers-how-use- mashed-potatoes .