Step 1 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Preheat the oven to 350°F.
Step 2 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Spray a bundt cake pan liberally with nonstick cooking spray. Set aside.
PRO TIP If using a nonstick pan, coat the pan in a small amount of butter, melted shortening, or oil rather than using nonstick cooking spray. Dust with granulated sugar, flour, or nut flour (optional) to assist in pulling the bundt cake out of the pan later.
Step 3 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Place the butter, sugar, and vanilla into a large mixing bowl. Using a hand mixer or stand mixer fitted with a whisk attachment, cream the ingredients together on medium speed for 1 minute, or until smooth. Add the eggs and sour cream, and continue to beat for a minute more, until the mixture is light and fluffy.
Step 4 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Sift the flour, baking powder, baking soda, and salt into the bowl. Beat the mixture on low, scraping down the sides of the bowl with a rubber spatula as needed, until a smooth, medium-thick batter forms.
Step 5 of 10
Cinnamon Swirl Sour Cream Bundt Cake
In a small bowl, whisk together the brown sugar, cinnamon, and salt until thoroughly combined.
Step 6 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Spread 1/3 of the cake batter into the bundt pan. Sprinkle half the cinnamon sugar mixture evenly on top. Layer another 1/3 of the batter into the pan, and evenly sprinkle over the remaining cinnamon sugar. Top with the remaining batter.
Step 7 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Bake the bundt cake on the middle rack of oven until a toothpick inserted in the center of the cake comes out clean, 55-70 minutes.
Step 8 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Check to see that cake is done. Remove from oven or add time as needed.
Step 9 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Allow the cake to cool in the pan for 15-20 minutes. To release the cake, run a butter knife between the edge of the cake and the pan. Turn the cake onto a large serving plate.
PRO TIP Make sure to let the cake cool for a bit before inverting the pan! This helps prevent the cake from falling out into a crumbly mess. Don't wait too long though - the cake can become damp and stick to the pan.
Step 10 of 10
Cinnamon Swirl Sour Cream Bundt Cake
Allow the cake to cool for 1-2 hours before slicing and serving.