2 tablespoons
maple syrup, plus more for serving (optional)
Method
Preheat the oven to 350°F with a rack in the center position. Grease a 9x5-inch loaf pan with butter and dust with flour.
In a medium mixing bowl, combine the flour, baking soda, and salt.
Place the butter and brown sugar in the bowl of a stand mixer and cream together until fluffy, about 2-3 minutes. Mix in the eggs and mashed bananas until incorporated. Pour in the flour mixture, and mix until just moistened.
Transfer the batter to the prepared loaf pan. Top with thinly sliced banana pieces, if using and sprinkle evenly with the granulated sugar.
Bake until a toothpick inserted into the center of the loaf comes out clean, about 60-65 minutes. Let the bread cool in the pan for 10 minutes, then turn out onto a wire rack.
In a small bowl, combine the mascarpone and maple syrup.
To serve, cut the bread into slices. Spread each slice with 2 tablespoons maple-mascarpone and drizzle with extra maple syrup.