Herb oil

Instructions

1. Step 1

   Blanch the herbs in boiling water for 30 seconds, then immediately refresh in a bowl of iced water. Blanching destroys the enzyme that causes the herbs to oxidise and turn brown, ensuring the herb oil has a bright green colour

2. Step 2

   Squeeze the herbs to get rid of any excess moisture, then spread the herbs out to dry on a clean cloth, patting them as dry as you can

3. Step 3

   Place the herbs and oil into a high-powered blender and blend for 10 minutes, or until the outside of the blender feels hot, or an instant read thermometer reads 60°C

4. Step 4

   Transfer the herb oil to a small bowl, then place the small bowl in a larger bowl of iced water, to chill it down quickly. This will keep the herb oil a nice bright green colour

5. Step 5

   Transfer the oil into a coffee filter suspended over a container and leave to strain overnight

6. Step 6

   Discard the solids and store the herb oil in the fridge for up to 2 weeks