2 tbsp fresh lemon rind, one 5cm-piece, grated and another 5cm-piece, cut into thin strips to garnish
1 tbsp lemon juice
1 tbsp wholegrain mustard
1/2 cup fresh chives, finely chopped
Oil spray
Method
Boil potatoes for 8–10 minutes or until tender. Drain well and set aside to cool for 5 minutes.
Preheat a chargrill or barbecue on high. Lightly spray the potato and asparagus with oil. Chargrill the potato for 1–2 minutes each side or until lightly charred. Transfer to a serving platter.
Chargrill the asparagus, turning, for 2 minutes or until tender. Transfer to the platter with the potato.
Combine the buttermilk, grated lemon rind, lemon juice and mustard in a small jug. Season with salt and pepper. Drizzle over potato and asparagus. Serve sprinkled with the chives and strips of lemon rind.