Tartiflette with Fromager d'Affinois Le Fromager - Fromager d'Affinois

Ingredients

• 2 tablespoons unsalted butter, plus softened butter for the dish
• 1 kg red-skinned potatoes, scrubbed but unpeeled, cut into ¼-inch rounds
• 6 slices/225 g thick-sliced bacon, cut into 2.5 cm pieces
• 1 large yellow onion, chopped
• 120 ml dry white wine
• ½ teaspoons fine sea or table salt
• ½ teaspoon freshly ground black pepper
• 200 g Fromager d’Affinois Le Fromager , cut into ¾ to 2 to 2.5 cm pieces with the rind
• Finely chopped fresh chives for garnish