Salad Niçoise with Maple - Maple from Canada

Ingredients

• 100g green beans
• 3 white potatoes, peeled, diced and cubed
• 200g mixed salad leaves
• 16 cherry tomatoes, halved
• 12 pitted black olives, halved
• 6 – 8 anchovies
• 4 x 150g tuna steaks
• 1 tbsp pure maple syrup (preferably golden colour for its delicate flavour)
• 4 soft boiled eggs, halved
• 1 tsp olive oil
• Handful fresh chopped chives
• 2 tbsp Dijon mustard
• 50ml white wine vinegar
• 300ml olive oil