Potato and avocado salad

• 500g small New/Baby potatoes, cut in half lengthways
• 2 tbsp olive oil
• 150g smoked bacon lardons
• 1 Romaine lettuce, washed and torn into pieces
• 1 large avocado, peeled and stoned, cut into 2cm cubes
• 180g blue cheese, cut into cubes
• Handful of chives, chopped, to garnish

For the dressing

• 4 tbsp olive oil
• 1 tbsp white wine vinegar
• Pinch of sea salt
• Pinch of sugar
• ½ tsp Dijon mustard