Step-by-Step Instructions

• Preheat your oven to 350°F (175°C) and grease a 9×5-inch loaf pan.
• In a large mixing bowl, cream together 1 cup of softened butter and 2 cups of granulated sugar using an electric mixer on medium speed for about 3-5 minutes until light and fluffy.
• Beat in 2 eggs one at a time, then add 2 teaspoons of vanilla extract and mix on low speed until well combined.
• In a separate bowl, whisk together 2 cups of all-purpose flour and 1 teaspoon of baking soda.
• Gradually add the dry mixture and 1 cup of sour cream to the butter mixture, starting and ending with the flour. Mix until just combined.
• In a small bowl, combine 0.75 cup of brown sugar with 2 tablespoons of ground cinnamon. Stir until mixed.
• Pour half of the batter into the loaf pan, sprinkle half of the cinnamon sugar mixture over it.
• Add the remaining batter to the pan and top with the rest of the cinnamon sugar mixture.
• Gently swirl through the batter with a knife to create a ribbon effect.
• Bake for 45-55 minutes or until a toothpick inserted in the center comes out clean.
• Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.