How to Make It
In a blender, puree all of the ingredients until smooth. With the machine on, drizzle in 1/3 cup warm water until incorporated. If the dip is too thick, add more water, 1 tablespoon at a time. Season generously with salt. Transfer to a small bowl.
Vadouvan, a French spice blend inspired by Indian curry, is available at Whole Foods and from amazon.com.