- Discard any really thick or tough stems from the watercress and herbs.
- Put everything in a blender and whizz till smooth.
- Add extra olive oil for a thinner consistency.
- Boom! Dollop this funky fresh pesto on everything.
- Spoon on your salmon, stir through your pasta or garnish barbecued lamb for a sensationally seasonal sauce.
- Freeze into smaller portions so you can enjoy it over a few meals.