Healthier potato salad - Good Food Middle East

Ingredients

• 750g Charlotte new potatoes, skins left on
• 2 tbsp good-quality mayonnaise (we used Hellmann's)
• 3 tbsp natural yogurt
• 3 tbsp half-fat crème fraîche
• 1 tsp Dijon mustard
• 1 tbsp semi-skimmed milk
• 8 spring onions, ends trimmed, halved lengthways and sliced
• 3 tbsp snipped chives
• 1 tbsp chopped tarragon