Step 1

In a non-reactive container, add the oil, alcohol, and washed rocket leaves.

Step 2

Leave to sit in a cool, dark place for 5 hours. Shake it every hour or so to agitate it.

Step 3

Place the container in the freezer and leave it overnight, or up to 8 hours.

Step 4

Take the container freezer and carefully strain out the alcohol using a cloth and funnel into your chosen bottle.