Erbse und Kartoffel Wurstsuppe

Had an opened pack of Bockwurst in the fridge that needed using up, so threw together a sausage and pea soup.

Really tasty and warming...

1 red onion finely chopped
2 medium potatoes diced
800g pack frozen peas
1 litre vegetable stock (2 cubes)
3 large Bockwurst cut into half inch thick slices (de-skin prior to slicing if preferred)
tbsp olive oil
knob of butter
pepper

Heat oil and butter in large saucepan.
Add onions and cook gently until transparent.
Mix in potatoes and cook for 5 minutes.
Season with pepper.
Add stock and stir then add the frozen peas.
Bring to a simmer and add the Bockwurst slices.
Continue to heat gently until wurst is heated through.
At this point, you can either turn off the heat and leave to have later (is tastier allowed to stand for a couple of hours) or if eating straight away, ladle out about 700ml of the pea/potato/stock mix into a suitable container (I used a 1ltr jug) and using a wand blender, blend the mix to produce a smooth soup. Return this to the remaining soup and stir in. Continue to heat gently (if allowed to cool previously) then serve.