Roasted harissa cauliflower with warm coriander hummus and dukkah

Name: Roasted harissa cauliflower with warm coriander hummus and dukkah
Cook time: 55 min
Total time: 55 min
Cuisine: Moroccan, African
Ingredients: 1 large, leaves reserved cauliflower; 3 tbsp olive oil; 2 tbsp rose harissa; 1 clove, finely chopped garlic; 400g tin, rinsed and drained (see cook’s notes) chickpeas; 2 tbsp tahini; 1, juiced lemon; a small bunch, roughly chopped coriander; 50g hazelnuts; ½ tsp cumin seeds; ½ tsp coriander seeds; ¼ tsp fennel seeds; 2 tsp sesame seeds