Preheat your oven to broil.
Season with salt and pepper and refrigerate until ready to use.
Prepare a rimmed baking sheet with tinfoil and set aside.
Place all ingredients at your workstation.
Slice your buns in half, place on your prepared sheet and put in the oven until browned and toasted.
Remove toasted buns from your oven.
Reduce oven temperature to 350 degrees.
Place corned beef on the bottom first.
Next place sauerkraut on top and then cheese.
Bake open faced at 350 degrees for 5 minutes.
Remove from oven, spread some aioli and serve immediately. Enjoy!