Drain chickpeas and set aside liquid from can. Combine remaining ingredients in blender or food processor. Add ¼ cup of liquid from chickpeas. Blend for 3-5 minutes on low until thoroughly mixed and smooth.
Place in serving bowl, and create a shallow well in the centre of the hummus.
Add a small amount (1-2 tablespoons) of olive oil in the well. Garnish with parsley (optional).
Serve immediately with fresh, warm or toasted pita bread, or cover and refrigerate.