Basil And Lemon Sauce

This sauce is wonderful with simply grilled fish and even better with swordfish.

150ml vegetable stock

150ml white wine

3 shallots, chopped 

1 potato, fine chopped

handful basil leaves, torn

1tbsp olive oil

Juice 1/2 a lemon

1tsp lemon zest

salt and pepper

Put your stock and wine into a pan and bring to the boil. Add the shallot and potato and simmer until everything is tender. Remove from the heat and pour into a bowl with the olive oil and basil. Use a stick blender to blitz to a smooth consistency then stir in the lemon juice and zest and season.