Onion Gravy for Bangers and Mash

Onion Gravy for Bangers and Mash
I’ve lived in the Uk for 16 years now and I quite like the British classic, Bangers and Mash. This is sausages and potato puree served with an onion gravy. Sausages and puree I could already do, but I needed a recipe for the gravy. This one combines a couple that I looked at on ...