A ficelle, which is slightly shorter than a baguette and about 1-1/2 inches (4 cm) thick, is the French bread to choose for these crusty croûtes. They're bigger than croutons but have the same appealing crunch in a salad. While smaller than regular crostini, these croûtes provide just enough foundation for a delicious one-bite of dip, paté or spread. No ficelle in the bakery? Use half a regular baguette and cut in half lengthwise before slicing.