Step-by-Step Instructions

Prepare the Oven and Pan:

Preheat your oven to 350°F (175°C). Grease and lightly flour a 9x5-inch loaf pan.

Mix the Dry Ingredients:

In a large mixing bowl, whisk together flour, sugar, baking soda, baking powder, and salt.

Combine Wet Ingredients:

In another bowl, whisk together buttermilk, egg, and melted butter until smooth.

Make the Batter:

Gradually pour the wet ingredients into the dry ingredients. Stir until just combined—avoid overmixing to keep the bread tender.

Prepare the Cinnamon Swirl:

In a small bowl, mix the sugar and cinnamon together.

Layer the Batter:

Pour half of the batter into the prepared loaf pan. Sprinkle half of the cinnamon-sugar mixture evenly over the batter. Add the remaining batter and top with the rest of the cinnamon-sugar mixture.

Create the Swirl:

Use a knife to gently swirl the cinnamon-sugar mixture into the batter, creating a marbled effect.

Bake the Bread:

Bake in the preheated oven for 50–60 minutes, or until a toothpick inserted into the center comes out clean.

Cool and Serve:

Allow the bread to cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.