leftovers soup

Using up bits and bobs of leftovers to make soup for lunch.

Starting with about a pint of water/stock from boiling gammon at the weekend,adding a small carrot not much bigger than a finger, a slice cut from a turnip, half a sweet potato left sitting in the fridge, a handful of yellow split peas and half a chopped up onion. Everything in a saucepan and simmered for about half an hour.
Today's magic ingredient though was 3 or 4 tablespoons of sauce left over from yesterdays fake boston beans - I could always add a little tomato puree, a pinch of mustard and a very small dribble of black treacle another time to see if it tasted the same, but today's was a wonderful accidental soup.