Step 1

Add herb leaves and oil to a blender and blend until completely smooth.

Step 2

Add mixture to a medium saucepan and bring to a simmer over medium heat. Simmer for 45 seconds.

Step 3

Strain into a bowl through a fine mesh strainer or chinois without pushing down on the mixture.

Step 4

Strain again through a paper coffee filter into a medium-sized bowl. Let the filtered oil settle for a few hours, then pour it off the dark liquid in the bottom of the bowl, if there is any.

Step 5

Store in an airtight container in the refrigerator, and use within 1 week.