• Preheat oven to 350 degrees. Grease a 9 x 5 loaf pan with non stick cooking spray or butter.
• In a large bowl combine flour, 1/2 cup brown sugar, baking soda and salt, set aside,
• In a medium bowl combine buttermilk, vanilla, egg and oil.
• Add the wet ingredients to the dry and mix until just combined.
• In a small bowl combine the remaining 1/2 cup brown sugar and cinnamon.
• Add half of the batter to the prepared loaf pan.
• Sprinkle half of the cinnamon sugar mixture on top.
• Pour the remaining batter in followed by the remaining cinnamon sugar mixture on top. Using a butter knife swirl the batter to marble the bread. (I do a couple figure 8's).
• Bake for 40 minutes or until golden brown on top and a toothpick comes out clean.
• Allow it to cool for 30 minutes in the pan and take it out to cool completely on a wire rack.
• When it is cool drizzle with the glaze and serve.

Glaze

• In a medium bowl combine the powdered sugar and milk. Whisk until it is smooth and clump free. Set aside until you are ready to drizzle ontop of the bread.