Preheat oven to 400°F (200°C).
Prick the sweet potato with a fork and roast for 45 minutes or until tender.
Allow sweet potato to cool, then remove the skin and measure 1 cup of flesh.
In a food processor, combine the roasted sweet potato, chickpeas, tahini, lemon juice, garlic, olive oil, cumin, paprika, and salt.
Process on high for 1 to 2 minutes until smooth and creamy.
Slowly add cold water while processing to reach the desired consistency.
Taste and adjust seasoning with additional salt or lemon juice if necessary.
Transfer to a serving bowl and garnish with a drizzle of olive oil and a sprinkle of paprika.