To roast the bell peppers: Line a rimmed baking sheet with parchment paper. Slice the tops of the bell peppers and remove the stems from the tops. Using a paring knife (or a spoon) take out the core. Cut the bell pepper into three pieces. Place them on the sheet pan skin side up.
Adjust oven rack 3 to 4 inches from the broiler element (or at the top rack) and heat broiler. Broil until the skin is well charred, 10 minutes. Be sure to rotate the sheet pan halfway through.
Place the now-charred peppers in a bowl, cover with plastic wrap and let it steam for 10 minutes. At this point, it is up to you to whether or not remove the skin. If you like the charred flavor, feel free to keep the skins on. If not remove and discard them. You should end up with approximately 1 cup of roasted bell peppers.
Place crackers into a Ziplock bag and crush them with a rolling pin.
Place roasted peppers, walnuts, cracker crumbs, scallions, olive oil, pomegranate molasses, lemon juice, paprika, ground cumin, salt, and cayenne pepper into the bowl of a food's processor.
Process until pureed, 15-20 seconds scraping down the sides of the bowl halfway through processing.
Transfer to a bowl and serve with crackers, pita bread, and/or crudites.