1. Preheat the oven to 500 degrees Fahrenheit. Line a roasting pan with enough foil to later fold over the top. Place the peppers in the pan and the pan in the oven. Roast, turning the peppers about every 10 minutes, until the peppers collapse, about 40 minutes.
2. Fold the foil over the peppers and allow them to cool. Work over a bowl and remove the core, skin, and seeds from each of the peppers, reserving some of the liquid.
3. Place the pepper pulp in the container of a food processor with about 2 tablespoons of the reserved liquid. Add a large pinch of salt and turn on the machine; drizzle the oil in through the feed tube. Stop the machine, then taste and add more salt and/or olive oil if necessary. Store, well covered, in the refrigerator (for several days) or the freezer (up to a month).
10 Simple Uses for Red Pepper Purée
Mark Bittman is the author of the New York Times column The Minimalist Cook.
Jeremy Bailenson, founding director of Stanford University's Virtual Human Interaction Lab, is studying whether the experience of being a virtual cow will make people feel more empathy. "[Our previous work] showed that if you had occupied the avatar of another person, you showed empathy toward them," Bailenson says. "But no one had ever tried this with another species."