Purple sprouting broccoli, buttermilk & blue cheese soup - Good Food Middle East

Ingredients

• 2 tbsp olive oil, plus extra for drizzling
• 1 onion, roughly chopped
• 1 celery stick, roughly chopped
• 1 large potato (about 300g), cut into 2cm cubes
• 250g purple sprouting broccoli (stalks, florets and leaves), roughly chopped
• 1.1 litres vegetable or chicken stock
• 100ml buttermilk
• 100g blue cheese, crumbled
• 3 tbsp double cream
• ½ lemon, juiced
• 30g mixed seeds
• ½ small bunch of chives, finely sliced