one onion diced one pack of split peas (green or yellow - 500g) one soup pack of smoked bacon bits (approx 500g)
Fry the onions in a little oil until softened, add the bacon bits and fry for a couple of minutes. Then add the peas and cover with water. Simmer until peas have broken down - this could take a while, poss 45 mins or more.
The key is to keep adding water if it is getting too thick until it is the consistency that you want. Any leftover soup usually goes very thick once it's cold. This can be fixed by adding a little vegetable stock until it is the consistency you want.
The soup packs of bacon bits I use come from Scotland (brought back by relatives) but I'm sure that a bacon or ham could be substituted quite easily.