01 -
Preheat oven to 175°C. Grease a 23×13 cm loaf pan with butter or cooking spray, or line with parchment paper for effortless removal.
02 -
In a large mixing bowl, whisk together flour, granulated sugar, baking powder, baking soda, and salt until evenly distributed.
03 -
In a separate bowl, whisk together buttermilk, melted butter, eggs, and vanilla extract until smooth and fully incorporated.
04 -
Gradually fold the wet ingredients into the dry mixture using a spatula. Mix gently until just combined to preserve tenderness.
05 -
In a small bowl, combine brown sugar and ground cinnamon for the swirl.
06 -
Spread half the batter into the prepared loaf pan. Sprinkle half the cinnamon-sugar mixture over the surface. Add remaining batter, top with the rest of the cinnamon-sugar, and gently swirl with a knife to create a marbled effect.
07 -
Bake for 50–60 minutes, or until a toothpick inserted into the center comes out clean with a few moist crumbs. The loaf should be golden brown and pulling away from the edges.
08 -
Allow the bread to cool in the pan for 10 minutes, then transfer to a wire rack to finish cooling.
09 -
While the loaf is still warm, brush the top with the melted butter. In a bowl, mix sugar and cinnamon for the topping, and generously sprinkle over the buttered surface for a sweet, crisp crust.
10 -
Once topping has set, slice into thick pieces and serve as desired.