In a medium bowl, add yogurt, Parmesan cheese, lemon juice, anchovy paste, garlic, salt and pepper. Whisk well with a fork and refrigerate.
Preheat oven to 350 degrees F and line baking sheet with parchment paper. Add bread, drizzle with olive oil, sprinkle with salt and pepper, and toss with your hands. After spread evenly into a single layer and bake croutons for 20 minutes or until golden brown, stirring once.
Chop romaine lettuce. Add to a salad spinner, wash well and spin until completely dry. Transfer to a large salad bowl and toss with 2/3 of the dressing.
Add croutons, Parmesan cheese and remaining dressing on top. Serve immediately. Caesar salad doesn't store that well, so make only as much as you need.
Notes
Store: You can refrigerate dressing and lettuce separately for up to 2 days. Keep croutons in sealed container in the pantry. Assemble before serving.
It is important to completely dry the lettuce to avoid soggy salad.
You don't have to use all croutons. Store remainder in an airtight container in a cool dry place for up to a week.
If you don't love anchovy paste, try to add more Parmesan, lemon juice, garlic and salt to taste.