Step 5: Make the sauce & assemble the sandwich
Sandwich components
- comte, or gruyere200 g
- baguettes1
- arugulaa handful
- onion confit condimenta spoonful
- mayonnaise
- dijon mustard
Slice the baguette into a sandwich size and lay the inside face down to gently toast both sides.
Meanwhile, make the sauce. Mix the mayo, onions, and mustard. Add salt to taste if needed.
Slice the steak thinly and assemble the sandwich. Place the toasted bread down first followed by some of the sauce. Lay the fries down next, followed by the greens, and the sliced steak. Drizzle some sauce over the steak before adding the top piece of bread. Devour.