1. Preheat the oven

1. Preheat your oven to 175°C (350°F).
2. Grease and flour a standard 9×5-inch loaf pan or line it with parchment paper.

2. Make the batter

1. In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
2. In a large mixing bowl, beat the softened butter and sugar together until light and fluffy, about 2–3 minutes.
3. Add the eggs one at a time, beating well after each addition. Stir in the buttermilk and vanilla extract.
4. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

3. Prepare the cinnamon sugar swirl

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

4. Assemble the bread

1. Pour half of the batter into the prepared loaf pan.
2. Sprinkle half of the cinnamon sugar mixture over the batter.
3. Pour the remaining batter into the pan and top with the remaining cinnamon sugar.
4. Use a knife or skewer to gently swirl the cinnamon sugar into the batter.

5. Bake the bread

1. Bake in the preheated oven for 50–60 minutes, or until a toothpick inserted into the center comes out clean.
2. Allow the bread to cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely.

6. Serve

• Slice the bread and serve warm or at room temperature. It pairs wonderfully with a spread of butter or cream cheese.