In your smallest pan, gently warm the peanut butter, yogurt, 3 tbsp water, sweet chilli and soy sauce until melted together into a smooth sauce. Set aside and allow to cool.

Mix the spring onions and chicken into the sauce and season. Chill until the party – keep the lettuce leaves and cucumber under damp kitchen paper.

To assemble, add a bundle of cucumber to each lettuce leaf cup, plus a spoon of the chicken mixture. Sprinkle with sesame seeds and sit on a big platter for everyone to dig in. Or simply serve a pile of lettuce leaves alongside bowls of chicken and cucumber.