Cut the potatoes into bite-sized pieces and soak them in water. Drain the water and place the potatoes in a microwave-safe container with 1 tbsp of water. Cover loosely with plastic wrap and microwave at 600W for 5–6 minutes until tender. Drain and let cool slightly.

Cut the ham into 1cm squares.

In a bowl, mix cream cheese, mayonnaise, and a pinch of salt and pepper.