Cut the baguette into 15cm pieces.
Scoop out some of the inner bread from the baguette.
Spread butter on the inside of the baguette.
Thinly slice cucumber and carrot.
Combine chopped cilantro, a splash of lemon juice, a pinch of salt and sugar, and toss with the carrot and cucumber. Let it sit for a while.
Lightly grill the jambon ham in a pan.
Fill the baguette in order: jambon ham, pickled vegetables, then carrot, cucumber, cilantro.
Top with mayonnaise and chili sauce, then close the baguette.