We had a roast chicken yesterday, so I stripped the meat off and boiled up the carcass for stock. Boiled the stock with a celeriac (46p special offer from Tescos) and a leek (what, 15p?) and whizzed it up. Thinned down with water and milk, added the chicken strippings(well would have if I hadn't eaten them all) - so, dinner for me and dh with leftover baguette from yesterday, all in all, well under £1!
BEAT THAT!!