1. Place the bacon slices on a baking sheet lined with grease proof paper and cook the bacon in the middle of the oven for approx. 12 min at 225° C.
2. Put the slices of bread in the oven alongside the bacon and toast them for the last 6 minutes.
3. Make a dressing by whisking the egg yolk, mustard, lemon juice, oil and salt to a creamy consistency. Season to taste.
4. Spread garlic lightly on the toast and arrange the lettuce leaves and a little dressing on the toast. Put the cheese on the lettuce and garnish with the remaining dressing, bacon and a twist of pepper.
Serve the sandwiches hot!