Peel and chop the onion.Heat the oil and soften the onion n this.Add the sweetcorn but do not fry. Add the beefstock cook sweetcorn gently for 10-15 minutes.
Use a blender to puree the sweetcorn. mash puree through sieve to leave all skin behind,return puree back to pot and add half of he sour cream.Heat but do not boil or cream will curdle.Season soup with chilli, salt and pepper.
Remove the skin of the sausages and slice finely.Fry crispy in a pan.Cut the parsley.Decorate soup with sausage, parsley,toasted pine seeds and or a spoonfull of sweetcorn.Add rest of soured cream if wished.