Drain the chickpeas into a liquid measuring cup: save 1/4 cup of the liquid (aquafaba) for the dressing.
In a large blender, place the garlic, chickpeas, aquafaba, lemon juice, light miso paste, Dijon mustard, olive oil, neutral oil, kosher salt, and fresh ground pepper. Blend until a creamy dressing forms. Makes 1 cup; serve immediately or refrigerate up to 1 month. Bring to room temperature before serving.