Local burger with Raclette de Savoie cheese | Opinel Grande Bretagne

Ingredients

• 6 home-made buns
• 600 g freshly ground steak mince
• 12 thin slices smoked streaky bacon
• 12 slices Raclette de Savoie
• balsamic vinegar ketchup
• onion marmalade
• white sauce
• 1 teaspoon sea salt
• 1 egg
• 50 g butter
• 50 ml milk
• 1 pinch of sesame seeds
• 2 garlic cloves
• 1 teaspoon olive oil
• 400 g can of chopped tomatoes
• 50 g light brown cane sugar
• 3 tablespoons balsamic vinegar
• 1 teaspoon Herbes de Provence
• 6 onions
• 2 teaspoons olive oil
• 1 teaspoon light brown cane sugar
• 6 tablespoons Greek yoghurt
• 3 tablespoons crème fraîche
• 1.5 teaspoons Dijon mustard
• 6 pickles
• sea salt and freshly ground pepper