In a food processor or high-speed blender, add black beans, tahini, parsley, lemon juice, garlic, cumin, cayenne, and salt.
Process until the mixture is thick and creamy, stopping to scrape down the sides of the food processor.
Stop and adjust the seasoning to your taste. You might want to add more lemon juice.
Scrape the black bean hummus in a serving bowl. Top with garnishes, vegan cheese shreds, diced red bell pepper, black pitted olives, chopped parsley. Serve with crackers.