Fans of Ninja are scrambling to buy a five-star rated air fryer with more than 7,000 glowing five-star ratings as it's been slashed to less than £80 in Amazon's huge Black Friday sale. The air fryer is said to be so cheap and efficient to use, it has allowed Amazon customers to 'ditch their ovens' and reduce their energy bills in turn.

Normally £149.99, the 4-in-1 Ninja Air Fryer has been reduced to its lowest ever price, and is now £79. The 'bill reducing' Ninja Air Fryer AF100UK features four cooking functions.

Users can opt to Air Fry, Roast, Dehydrate or Reheat food at the touch of a button. While the basket may look small, its appearance is decieving, as it will fit an entire 1.35kg chicken, or 900g of French fries.

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The Ninja Air Fryer AF100UK also promises to use up to 75% less fat than traditional frying methods, so proves considerably more healthy. It can also cook up to 50% faster than fan ovens, a feature which can significantly help to reduce energy bills during what is proving to be a difficult financial period for many of us.

For those wanting something a little more tech-savvy, the Ninja Speedi 10-in-1 Rapid Cooker has also been slashed in price on Amazon. Normally £249.99, the Ninja Speedi 10-in-1 Rapid Cooker, Air Fryer and Multi Cooker is now its lowest ever price, at £138 for Amazon Prime customers.

With ten functions built-in, the Ninja Speedi 10-in-1 Rapid Cooker, Air Fryer and Multi Cooker has the capability to cook any meal. As well as the normal air fryer function, the Ninja air fryer can also make Speedi Meals, Steam Air Fry, Steam Bake, Steam, Grill, Bake or Roast, Dehydrate, Seara and Sauté, and Slow Cook.

Because it has two seperate compartments, the Ninja Speedi 10-in-1 Rapid Cooker, Air Fryer and Multi Cooker can switch between cooking modes, and can cook up two meals at the same time for those with picky households or wanting to batch cook to save time. Having proven so popular it crashed the Ninja website when it was first released, the Speedi model has amassed thousands of glowing five-star ratings.

Ninja's 'game changer' air fryer with over 7,000 five-star ratings slashed to £75 in Amazon Black Friday flash deal
Ninja's 'game changer' air fryer with over 7,000 five-star ratings slashed to £75 in Amazon Black Friday flash deal

One Ninja fan said of the air fryer: "Easy, quick, and practical. Not too big either. Cooks food beautifully. We've had quite a few different dishes, red/white meat and veggie. The flavours are amazing and the food doesnt dry out as it sometimes can do in a traditional oven. We havnt used our oven for weeks now. Worth every penny! The energy saving is Massive!! Best buy ive made this year!!"

Another wrote: "Bought on recommendation. I am getting used to different uses. Not just an air fryer. Food cooks so much quicker than an oven. Have cooked roast dinner in it too."

"Just love this, love the fact its only 1 lid. So easy to work and clean, and so light," penned another. Somebody else said: "This is an incredibly handy appliance to have and we hardly if ever use our oven anymore. The steaming/rapid cook option is amazing. Cooking one meal in this is entirely do-able.

"However the tiny little lip to pick up the top layer is fiddly and a hassle to operate. This design aspect needs some more thought."

For those looking for recipe inspiration, Amazon has slashed the price of its bestselling Air Fryer cookbook to £10, or £9.50 for the Kindle version. It contains 140 recipes, including roast dinners, fajitas and chocolate cakes.

Or for an air fryer with two baskets, Lakeland has reduced the Lakeland Dual Basket Air Fryer 8L. Originally £99.99, it's now £79.99.