Harissa roast sprouts with lemon-tahini yoghurt

Name: Harissa roast sprouts with lemon-tahini yoghurt
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: African
Ingredients: 2 tbsp rose harissa, plus 2 tsp extra, to serve; 1 tbsp soft brown sugar; 1 small garlic clove, peeled and roughly chopped; Sea salt and black pepper; 4 tbsp olive oil, plus a little extra to drizzle; 800g sprouts, cleaned and trimmed; 50g skin-on almonds; 1 tsp sumac; Flatbreads, to serve; Zest and juice of ½ lemon; 300g Greek yoghurt; 1tbsp tahini