Place the garlic, basil and almonds in the bowl of a food processor and process for around 20 seconds.
Add the parmesan cheese and lemon juice and continue to process whilst pouring in the olive oil.
Stop processing and take a spatula to scrape the mixture off the side of the bowl then process again for 20 seconds. Repeat this process of scraping the sides a few times or more until you have a good consistency and all the basil has been chopped.
Season with salt and pepper and pulse or process a couple more times.