Step 1

Place potatoes in a large saucepan. Cover with cold water. Place over high heat and bring to the boil. Cook for 10-12 mins or until the potatoes are tender. Refresh under cold water. Drain. Cut into quarters.

Step 2

Meanwhile, cook the sugar snap peas in a medium saucepan of boiling water for 2 mins or until bright green and tender. Refresh under cold water. Drain well.

Step 3

To make the green goddess dressing, place mayonnaise, yoghurt, anchovy, lemon juice, mustard, garlic, chives, tarragon and mint in a food processor. Process until mixture is smooth. Season.

Step 4

Combine potato, peas, fennel, radish, rocket, watercress and half the dressing in a bowl. Transfer to a serving platter. Drizzle with the remaining dressing and sprinkle with the reserved fennel fronds.