See how to make a classic French dip sandwich with au jus. In this video, you’ll learn the keys to a perfect French dip sandwich. Smear the bread with homemade horseradish sauce and garlic, add some melted Swiss cheese, and load up the sandwich with plenty of meat, onions, peppers, and mushrooms. Watch the video, then get the recipe for The Big Dipper Sandwich. Mmm, it’s a jazzed up French dip!