Blend the tahini base

• Add the tahini, lemon juice and garlic to the food processor.
• Blend until the mixture turns pale and creamy.

Add the chickpeas

• Add the chickpeas, salt and cumin.
• Blend, scraping down the sides, until smooth.

Stream in the ice water

• With the processor running, drizzle in the ice water.
• Keep blending until the hummus is light and very creamy.

Finish and serve

• Blend in the olive oil.
• Spread into a bowl, drizzle with olive oil and serve.