Frylight 1cal spray £1 @ Asda

FryLight® - The Only One Cal Cooking Spray.
Keeping a watchful eye on fat and calories is key to following a healthier diet, so it is easy to see why award-winning FryLight® is so popular because the patented spray system dispenses a measured 1 calorie per spray.
Each 1 Calorie spray replaces up to 30 calories of normal pouring oil - that's 30 times less fat and no cholesterol.
There are four varieties of FryLight®: Sunflower Oil, Extra Virgin Olive Oil, Better Than Butter and the new Stirfry Oil. Something to cook all your favourite dishes, sauces, soups and pastas!
If you are barbecuing, spray your fish, meat and vegetables before cooking, to save fat and calories and to prevent sticking to the grille or pan. Non-stick and cholesterol-free, the healthy option never tasted so good!
A 250 ml can of FryLight is equivalent to 7 litres of ordinary oil, so it's very economical and goes a long, long way.

I got a couple because I have just started Slimming World, can make virtually fat free chips and wedges with this! Also £1.89 at Morrisons.