Place dressing ingredients in a blender or vitamix or immersion blender and blend.
Preheat oven to broil. Toss bread with oil, salt, and pepper and place on a baking sheet, broil for 1-2 minutes, flip over and broil another 1-2 minutes until golden brown to make croutons.
In a large bowl, add lettuce and croutons. Add dressing, but only a small amount at a time, tossing between, until the salad is dressed properly. Leftover dressing can be kept in an airtight container in the refrigerator for at least one week.
Portion salad onto two plates and split salmon between them. Top with shaved parmesan.