Pesto Pea Soup

I had some freshly-shelled peas during the season and wanted to make the most of it, and just happened to watch a cooking show that shared this recipe. It is easy, yet delicious.

You'll need:
2-3 cups shelled peas (frozen would do as well, but I find fresh ones have a better taste)
*1 tbsp Pesto sauce
Vegetable stock (just enough to cover the peas while boiling. Water will also suffice if you don't have stock)
Seasoning
1 tbsp cream (optional)

*If you don't have pesto on hand, then just add these directly with the peas
2 cloves garlic
4-5 cashew nuts or walnuts
5-6 leaves of basil
2 tbsp olive oil

Boil the peas with some salt till they're soft, for around 5 minutes.
Put the peas along with the water used to boil it in a blender.
Add the pesto (or the pesto ingredients) and blend till it's smooth.
Do not put it through a sieve - the slight texture adds to the flavour.
Add more water or seasoning to preference.
Top it with some crushed black pepper or cream.