1 lemon, grate zest & juice 
2 cloves of garlic, crushed
2 tbsp fresh mint, chopped
3 tbsp olive oil (I use a mixture of extra virgin & normal)
salt & black pepper to season
1. Place beans and lemon juice in a food processor and blend until smooth.
1. Place beans and lemon juice in a food processor and blend until smooth.
2.  Add lemon zest & juice, garlic, mint and oil and process again.  Add a tbsp of water if a smoother consistency is required.
3.  Season to taste with salt and black pepper.
4.  Refrigerate until required.  Keeps well in fridge for up to 5 days.
I have also made this with homegrown borlotto beans.