Ingredients
Equipment
Method
Prepare and mix the cake
- Preheat the oven to 325°F.
- Thoroughly coat a 12-cup Bundt pan with nonstick baking spray with flour, making sure to cover all the crevices.
- Whisk the flour, baking powder, baking soda, salt, cinnamon, and cream of tartar together in a medium bowl.
- Beat the softened butter and sugar in a large bowl with an electric mixer on medium speed until light and fluffy, about 3 minutes.
- Beat in the eggs one at a time, mixing well after each addition.
- Mix in the vanilla.
- Add the flour mixture in three additions, alternating with the sour cream in two additions; begin and end with the flour mixture, mixing on low just until combined.
Bake and cool the cake
- Scrape the batter into the prepared pan and smooth the top.
- Bake for 60 to 75 minutes, until a toothpick inserted in the center comes out with a few moist crumbs.
- Cool the cake in the pan for 15 minutes.
- Invert it onto a wire rack and lift off the pan.
- Cool completely.
Coat the cake
- Melt the butter.
- Stir the sugar and cinnamon together in a shallow dish.
- Brush the cooled cake all over with the melted butter.
- Sprinkle and gently press the cinnamon-sugar mixture over the entire surface.
Notes
For the lightest texture, mix the batter on low just until combined. Store covered in the refrigerator for up to 4 days; this cake freezes well. Plain full-fat Greek yogurt can replace the sour cream.
