Pommes de Terre Vigneronnes (Wine Maker’s Potatoes)

Ingredients:1 kg / 2.2 lbs floury potatoes (Maris Piper, King Edwards, or Russet)150 g / 5 oz lardons or smoked bacon cut into matches50 g / 3.5 tbsp butter3 tbsp vegetable oil2 big onions, sliced1 tbsp all-purpose flour400 ml / 14 fl oz beef stock200 ml / 7 fl oz red Beaujolais wine2 bay leaves1 branch of thymesalt and pepperStepsPeel the potatoes and slice them into 3 mm / 1/8 inch thick discsMelt the butter with the oil in a pan a...