Wash hands with soap and water.
Scrub garlic and lemon with a clean vegetable brush under running water. Cut the lemon in half and squeeze out the juice.
In a food processor or high-speed blender, add the drained chickpeas along with the garlic, tahini, lemon juice, water and salt. Blend until creamy and smooth.
Adjust flavor by adding more salt, lemon juice, garlic or tahini according to taste.
If the hummus is too thick, add water until it reaches a creamy consistency.
Gently rub fresh parsley under cold running water.
Transfer hummus to a deep bowl and drizzle with olive oil. Sprinkle with paprika and chopped parsley.