Ingredients
Equipment
Method
- Combine the flour, baking powder, baking soda, and salt in a large mixing bowl.
- Beat the softened butter and granulated sugar together until fluffy and pale.
- Gently mix the sour cream, eggs, and vanilla extract into the wet mixture until smooth.
- Spread half the batter into a pan, add the cinnamon sugar, and cover with the remaining batter.
- Bake until a toothpick inserted in the center comes out with just a few moist crumbs attached.
Nutrition
Notes
Store covered at room temperature for up to 3 days; do not refrigerate or it will dry out. Use a spoon to gently spread the top layer of batter over the cinnamon swirl.



