Ingredients
For the Cake:
- 115 g (½ cup) caster/superfine sugar
- 125 g (½ cup) unsalted butter, at cool room temperature
- 1 teaspoon vanilla bean paste
- 1 large egg, at room temperature
- 120 g (½ cup) full-fat sour cream, at cool room temperature
- 150 g (1 cup) plain/all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ¼ teaspoon sea salt
- 1 teaspoon ground cinnamon
For the Cinnamon Sugar Topping:
- 1 tablespoon (20 g) unsalted butter
- 1 teaspoon ground cinnamon
- 1 ½ tablespoon granulated sugar
Instructions
- Preheat and Prepare Pan: Preheat your oven to 180°C (355°F). Grease and line the base and sides of a 19 cm (7.5 inch) springform tin with removable sides to ensure the cake releases easily after baking.
- Cream Butter and Sugar: In a large bowl, add the butter, sugar, and vanilla bean paste. Beat using electric hand beaters for a couple of minutes until the mixture is pale and creamy, creating a light texture for the cake batter.
- Add Egg and Sour Cream: Beat in the egg until well combined, then incorporate the sour cream and beat until smooth, adding moisture and richness to the batter.
- Combine Dry Ingredients: Switch to a large spoon and fold in the flour, baking powder, baking soda, ground cinnamon, and sea salt. Carefully fold until just combined to avoid overworking the batter, which will be thick.
- Transfer Batter and Smooth: Pour the batter into your prepared tin and use an offset spatula to smooth the top evenly for an even bake.
- Bake the Cake: Bake in the preheated oven for 28-32 minutes. Check doneness by inserting a skewer into the center; it should come out clean.
- Prepare Cinnamon Sugar Topping: While the cake bakes, melt the butter. In a small bowl, combine the ground cinnamon and granulated sugar to create the topping mix.
- Apply Topping: When the cake is done, while still warm, brush the top with the melted butter and evenly sprinkle the cinnamon sugar mixture over it to add a sweet, spiced crust.
- Cool and Serve: Allow the cake to cool for 10 minutes before removing the springform sides. Let the cake cool completely before slicing to set the texture.
Notes
- Note 1: Using plain/all-purpose flour provides the ideal texture for this cake; you can substitute with gluten-free flour blend if needed but checking for ratios is recommended.
- Note 2: Ensure the butter for topping is melted but not hot to help the cinnamon sugar adhere evenly on the cake surface.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American