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Loaf of bananas foster banana bread on a cooling rack with rum glaze in a pitcher.

Secret Ingredient Bananas Foster Banana Bread

What's my secret to this scrumptious bananas foster bread? I actually have two. In fact, Duke's mayonnaise is added to the batter to make the banana bread extra moist. Secondly, I let my bananas get so ripe that they're on the verge of needing to be tossed in the garbage.
5 from 9 votes
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Course: Breakfast
Cuisine: American
Prep Time: 25 minutes
Cook Time: 1 hour 5 minutes
Servings: 8

Equipment

  • 9- x 5-inch loaf pan
  • mixing bowl set
  • handheld mixer
  • dry measuring cups
  • wire cooling rack
  • set of measuring spoons
  • small skillet
  • whisk

Ingredients

For the bananas foster bread:

  • 1 ½ cups mashed very ripe banana (3 to 4 large bananas)
  • ¾ cup firmly packed light brown sugar
  • ¼ cup salted butter, melted (½ stick butter)
  • 1 large egg
  • cup Duke's mayonnaise
  • 3 tablespoon golden or dark rum
  • 1 teaspoon vanilla extract
  • 1 ½ cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 teaspoon kosher salt
  • ½ teaspoon ground cinnamon
  • 1 banana, sliced lengthwise

For the browned butter-rum glaze:

  • 2 tablespoon salted butter
  • 2 tablespoon golden or dark rum
  • ½ cup powdered sugar

Instructions

  • Preheat the oven to 350°F. Grease a 9- x 5-inch loaf pan. (I use vegetable shortening for greasing.)
  • Beat together the mashed bananas, brown sugar, butter, egg, mayonnaise, rum, and vanilla in a large bowl with an electric mixer until smooth.
  • Mix together the flour, baking soda, salt, and cinnamon in a medium bowl. Add to the banana mixture and stir just until combined.
  • Pour banana mixture  into the prepared pan. Top with the sliced banana, cut sides up. Bake the bread at 350°F for 1 hour and 5 minutes, or until a toothpick inserted in the center comes out clean.
  • Let the bread cool in the pan on a wire rack. While the bread cools, make the browned butter-rum glaze. Cook the butter in a small skillet over medium heat for 2 to 3 minutes, swirling the pan occasionally, until the milk solids begin to brown and smell nutty.
  • Remove the pan from the heat and carefully stir in the rum. Return to the heat and cook for 30 seconds to 1 minute longer to cook off the alcohol. (If using a gas burner, carefully flambé the mixture.) Transfer the glaze to a small bowl and whisk in the sugar until smooth.
  • Remove the bread from the pan and drizzle with the glaze.