Tartiflette with Reblochon de Savoie Cheese Recipe

Ingredients

• 2 tbsp sunflower or other light cooking oil
• 200g smoked lardons or diced smoked streaky bacon
• 2 large onions, peeled and finely sliced (about 400g)
• 2 large cloves of garlic, peeled and finely sliced
• 700g waxy potatoes e.g. Desirée, well scrubbed
• A sprig of rosemary (optional)
• 1 small Reblochon AOC (about 250g in weight)
• 150ml double cream
• Salt and freshly ground black pepper