Serves 4 Preparation: 15 minutes for the batterCooking time: 5-10 min (leave for 24h in the fridge) Ingredients: for the batter200g buckwheat flour 1 pinch of salt 2 tbsp oil3 eggs Water/milk/beer (300-500 ml)50g butter 4 slices of ham 4 eggs100g grated gruyère Salt & pepperSee the full recipe