Grilled aubergine salad

Name: Grilled aubergine salad
Ingredients: 3 medium aubergines; 4 tbsp extra virgin olive oil, plus extra for drizzling; ½ lemon, juice only; 10g/¼oz salt; 8g ground black pepper; pinch sugar; 80g/3oz drained cooked or tinned chickpeas; 10 dates, chopped; 1 red pepper, finely chopped; small bunch mint, leaves picked and chopped; small bunch coriander, leaves picked and chopped; chilli, to taste, finely chopped; 1 garlic clove, finely chopped; 40g/1½oz feta, crumbled; handful flaked almonds; balsamic vinegar, for drizzling; croûtons, to serve