A BLT’s got nothing on this perfectly layered baguette sandwich.

There’s an art to building the best sandwich, and this recipe is the piece de resistance.

Spread chive butter on cut sides of baguettes (about 3 tablespoons per side).

Fancy tomato sandwiches on a wooden board displayed on a table with fruit juice and sunglasses.

Photo: Greg DuPree

Arrange cheese on bottom baguette halves.

Top with arugula and onions.

Replace top baguette halves.

Slice each sandwich crosswise into 8 pieces for an appetizer or 4 pieces for a main.

Make Ahead

Refrigerate chive butter in an airtight container for up to 5 days.

Let come to room temperature before using.