Place the beans in a blender. Puree until smooth and creamy and there are no more lumps; set aside.
In a mixing bowl, combine tahini, lemon juice, yogurt, garlic, white pepper and salt. Blend well. Stir in the pureed garbanzo beans. Blend thoroughly. Spread the dip on a round large platter. Sprinkle red pepper, paprika and cumin. Rim with the minced parsley.