Ingredients:

  • 3 large overripe bananas, mashed (approx. 1 ½ cups / 350g)
  • ½ cup (115g) unsalted butter, melted and slightly cooled
  • ¾ cup (150g) light brown sugar, packed
  • 1 large egg, room temperature
  • 1 tsp (5ml) vanilla extract
  • 1 tsp (5g) baking soda
  • ½ tsp (3g) salt
  • 1 ½ cups (190g) all-purpose flour
  • ¼ cup (30g) all-purpose flour
  • ¼ cup (50g) light brown sugar, packed
  • 1 tsp (2g) ground cinnamon
  • 3 tbsp (42g) cold unsalted butter, cubed

Instructions:

  1. Preheat your oven to 350°F (175°C). Grease your loaf pan or line it with parchment paper for an easy lift.
  2. In a large bowl, mash the bananas until they form a creamy paste with minimal lumps.
  3. Stir in the melted butter, brown sugar, egg, and vanilla until the mixture is smooth and glossy.
  4. Fold in the baking soda and salt, then gently stir in the flour until no white streaks remain.
  5. In a medium bowl, whisk together the flour, brown sugar, and cinnamon for the streusel.
  6. Using a fork or your fingertips, work the cold, cubed butter into the streusel dry mix until the mixture resembles clumpy, wet sand.
  7. Pour the banana batter into the prepared pan and smooth the top.
  8. Generously sprinkle the streusel topping over the entire surface, pressing very lightly so it adheres.
  9. Bake for 55–65 minutes until the top is a deep mahogany color and a toothpick inserted into the center comes out clean or with just a few moist crumbs.