- 1/4 cup butter, softened
- 2 tablespoons Dijon mustard
- 1 tablespoon prepared yellow mustard
- 1 pinch cayenne pepper
- salt and ground black pepper to taste
- 1 baguette, cut diagonally into 1/2-inch slices
- Preheat oven to 350 degrees F (175 degrees C). Line a baking sheet with a silicone baking mat.
- Stir butter, Dijon mustard, yellow mustard, cayenne pepper, salt, and black pepper together in a bowl until spreadable and smooth.
- Spread mustard mixture generously onto both sides of each bread slice. Place bread slices on the prepared baking sheet.
- Bake in the preheated oven for 15 minutes. Flip bread slices and continue baking until golden brown and crisp, 10 to 15 minutes more.