• Preheat the oven to 300 degrees.
• Spray a 9-inch bundt cake pan with nonstick baking spray.
• In a large mixing bowl, add the flour, baking soda, and salt and whisk until combined.
• In a separate large mixing bowl, add the butter and sugar and cream until light and fluffy.
• Add eggs to the butter mixture, one at a time, mix to combine well after each egg.
• Add in the sour cream and mix until combined.
• Add the Whiskey and mix until combined.
• Gradually begin to add the dry ingredients and mix until combined.
• In a small bowl add the cinnamon mixture ingredients, stir to combine.
• Pour half of the batter into the prepared bundt pan.
• Sprinkle half of the cinnamon-brown sugar mixture on top of the batter.
• Pour the rest of the batter on top of the cinnamon brown sugar mixture.
• Smooth this layer evenly.
• Sprinkle the remaining cinnamon mixture on top of the batter.
• Bake in the preheated oven for 70 minutes or until a toothpick comes out clean.
• Cool the cake for 15-20 minutes in the bundt pan.
• After cooling, turn onto a serving plate.
• Allow cooling.

Whiskey glaze.

• In a medium bowl add the powdered sugar, whiskey, vanilla, and cream.
• Mix till combined.
• Pour the glaze over the bundt cake and garnish it with walnuts.