Serve this spread on our Yogurt-Nut Oat Bread or toasted pita.
Roast pepper over a gas-stove burner, turning with tongs as each section blisters and blackens. (Alternatively, place pepper on a baking sheet and roast under the broiler.) Transfer to a bowl,and cover with plastic wrap. Let cool slightly, about 15 minutes. Peel off and discard blackened skin. Roughly chop pepper, reserving collected juices.
In the bowl of a food processor, combine roasted pepper and juices, beans, ginger, chili powder, and vinegar. Process until smooth, about 2 minutes, scraping sides with a rubber spatula as needed. Season with salt and pepper. Serve immediately, or refrigerate in an airtight container up to 1 week.