"A nod to the old 'shrimp on the barbie' cliché. I love clichés," says Shaun Kelly. "Don't worry if there's too much XO sauce - it keeps well and does a good job of making most things better. Peel the prawns or leave the shells on - I prefer them shell on, but it's your call." Start a day ahead to soak the prawns and scallops.