Avocado and lettuce soup | Tesco Real Food

Ingredients

• 1 tbsp oil
• 15g butter
• 1 onion, diced
• 2 heads romaine lettuce, roughly chopped
• 600ml vegetable stock
• 3 tbsp chopped fresh dill
• 2 avocados, roughly chopped
• 1 lemon, juiced
• 4 tbsp crème frâiche