Pulse the garlic in a food processor until minced.
Scrape the bowl and add the beans, tahini, lemon juice, coriander, miso (if using), and 1 teaspoon salt. Pulse until smooth, scraping the bowl occasionally. With the machine running, add the olive oil. Season to taste with salt.
Tip
The dip will keep in the refrigerator in an airtight container for up to 1 week.