Depending on your make of processor, you might be able to combine all the ingredients in one go. I use a large Nutribullet chamber for this recipe, so I have to process incrementally.

If you’re also using a smaller blender: begin by blending the basil, walnuts and zucchini in your food processor.

Once these have combined, add the next three ingredients, before moving on. Once the mixture is totally combined, season it to taste.

I like to decant my pesto into 2 freezer safe containers and freeze for later use. If you’d like to freeze it for smaller batched goods, see the notes for freezing above.