Place the herbs, nuts, garlic, cheese and 3/4 cups of olive oil into the bowl of your food processor.
Turn on your food processor and blend until you reach a consistency that you’re happy with. If you prefer a smoother, runnier pesto over a chunkier one, add the remaining olive oil.
Notes
You can use various other herbs, like basil or lovage, or leafy greens like kale or baby spinach. You can use any other type of nuts or seeds in place of the cashews.