Test tube gravy
Bless the Royal Society of Chemistry who have come up with the formula for the perfect gravy. Given that we tend to think of gravy as quintessentially British, you might imagine that the perfect gravy is made from ground Beefeaters and seasoned with salt made from Union Jacks. However, according to the RSC, a dash of soy sauce is the vital ingredient for gravy that makes you say, 'Ahhh!'