Using serrated knife, cut 20 slices from the baguette (on an angle, ¼-inch thick). Save the remaining bread for another use.
Place the slices on a large baking sheet in a single layer. Brush both sides with olive oil, then sprinkle one side lightly with salt.
Bake for 5 to 10 minutes, or until crisp throughout and lightly golden (no need to flip). Set aside.
Prepare Toppings:
While crostini bakes, place walnuts in a small frying pan over medium heat. Cook until lightly browned and toasty smelling, watching closely and stirring often to avoid burning. Remove from heat, then transfer to a small bowl or plate.
Cut brie into 20 thin slices.
Assemble Crostini:
Top each crostini with one brie slice, then spread ½ teaspoon fig jam over cheese.
Divide nuts evenly between crostini, then top each crostini with a sprinkle of rosemary.
Serve immediately. Enjoy!
Notes
Fig Jam - This tasty jam may also be labeled as fig preserves or fig spread. Make in Advance - You should assemble the crostini shortly before serving. That way, the toasts do not get soggy. However, you can bake the crostini, toast the nuts, and slice the cheese in advance.More Tips - Check out the info before this recipe card for helpful tips, recipe variations, serving suggestions, and more!