2 tablespoons butter, room temperature
2 tablespoons minced chives, divided
1/2 tablespoon toasted sesame seeds
1/2 teaspoon grated peeled fresh ginger
1/4 teaspoon Asian sesame oil
8 1/4-inch-thick baguette slices
5 radishes, very thinly sliced
Mix butter, 2 tablespoons chives, sesame seeds, ginger, and oil in small bowl; season with salt and pepper. Spread butter mixture over each bread slice. Top with radishes, overlapping slightly. Sprinkle with remaining chives and fleur de sel, if desired.