Found lots of varieties of this range of Indian cooking sauces for £0.59 each! I bought the Tikka Masala, Jalfrezi and Butter Chicken, but they had other flavours too. The likes of Tesco rip customers off with circa. £2 price tags on these sauces! Long dates too, 2018 etc. No idea if it's national, I'd assume so!
PS: For anyone who hasn't tried these, they're all really tasty and way better than any shop-branded, or other branded ready-made sauces I've tried. They're not super unhealthy either, which is a bonus for any January dieters! ;)