Tesco on Instagram: "Easy peasy sharing starter 🦐🎊 Prawn cocktail dip Serves 6-8 Takes 20 mins DF 1/3 cucumber, finely sliced 3 tbsp white wine or cider vinegar 1 tsp caster sugar 1 tsp sea salt flakes 300g frozen cooked and peeled Atlantic prawns, defrosted 1 Little Gem, leaves separated 2 tbsp ketchup 4 tbsp mayonnaise few splashes of Tabasco ½ tsp cayenne pepper, plus extra to serve ½ avocado, cubed 5g fresh chives, finely chopped crisps or toasted baguette slices, to serve 1 lemon, cut int