Preheat the oven to 450°F (230°C).
Cut the red bell peppers in half and remove the seeds and stems. Place them cut side down on a baking sheet.
Roast the peppers in the oven for about 20-30 minutes, or until the skins are blistered and charred.
Remove the peppers from the oven and let them cool slightly before peeling off the skins.
In a food processor, combine the roasted red peppers, chickpeas, tahini, olive oil, lemon juice, minced garlic, cumin, and a pinch of salt.
Process until smooth, adding water a tablespoon at a time until the desired consistency is reached.
Taste and adjust seasoning if necessary.
Scoop the hummus into a serving bowl, and drizzle with additional olive oil if desired. Garnish with fresh parsley if using.
Serve with pita bread, vegetable sticks, or your favorite dippers.