Tahini coleslaw

Ingredients

• ½ white cabbage, finely sliced
• 150g radishes, finely sliced
• 1 white onion, finely sliced
• Handful parsley, freshly chopped, plus extra to garnish
• ¼ cucumber, deseeded and chopped
• Extra-virgin olive oil to drizzle

For the dressing

• 250g thick natural yogurt
• 1 heaped tsp sumac, plus extra large pinch to serve
• 3 tbsp tahini
• Zest and juice 1 small lemon
• 1 small garlic clove, crushed