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

Ingredients

• 2 tablespoons unsalted butter, plus softened butter for the dish
• 2.2 pounds/1 k red-skinned potatoes, scrubbed but unpeeled, cut into ¼-inch rounds
• 6 slices/8 oz/225 g thick-sliced bacon, cut into 1 in/2.5 cm pieces
• 1 large yellow onion, chopped
• ½ cup/120 ml dry white wine
• ½ teaspoons fine sea or table salt
• ½ teaspoon freshly ground black pepper
• 7 oz/200 g Fromager d’Affinois Le Fromager , cut into ¾ to 1 inch/2 to 2.5 cm pieces with the rind
• Finely chopped fresh chives for garnish