Step 1

In a small bowl, beat the eggs, milk, vinegar, salt and pepper until smooth; set aside. In a large skillet, cook bacon over medium heat until crisp. Remove bacon to paper towels to drain, reserving drippings.

Step 2

Whisk egg mixture into drippings. Cook and stir over medium heat until mixture reaches 160° or is thick enough to coat the back of a metal spoon.

Step 3

In a large salad bowl, combine the lettuce, onion and bacon. Pour dressing over salad; toss to coat. Serve immediately.