It’s important to first toast the walnuts because this adds a depth of flavour and removes some of the bitterness from the walnuts. To do this, add the walnuts to a dry frying pan (no oil) and toast over low-medium heat until the walnuts omit a nutty aroma and turn lightly golden (around 5 minutes).
60 g walnuts
Add all of the pesto ingredients to a food processor, starting with 1/4 tsp salt.
60 g fresh basil leaves, 7 g nutritional yeast, 70 ml olive oil, 2 medium cloves garlic, 1/4-1/2 tsp salt, ⅛ tsp ground black pepper
Pulse until combined, scraping down the sides of the processor bowl as necessary before blending again. Taste and add more salt if desired.
To store the pesto, add it to a dish and cover it in eco cling film (with the film touching the top of the pesto) and then add an airtight lid. Alternatively, you can add a thin layer of olive oil on top of the pesto instead of using cling film, before adding an airtight lid.
Store the pesto in the fridge for up to 3 days, or freeze using an ice cube tray for single servings that you can use for a quick meal.