Debark the bread and cut into 1 cm cubes. Heat the oil in a pan and toast the bread cubes until golden brown. Pick the lettuce hearts into bite-sized pieces and wash. Shave the parmesan.
For the dressing, boil the egg for 1 1/2 minutes, then rinse briefly and peel. Mix the egg with the remaining dressing ingredients in the mixer until smooth.
Mix the shredded lettuce and toasted bread in a bowl. Drizzle evenly with the dressing. Serve sprinkled with parmesan shavings. Serve with oven-warm bread.