Ingredients
Method
Preparation
- Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan.
- In a mixing bowl, cream together the unsalted butter, vegetable oil, granulated sugar, and powdered sugar until light and fluffy.
- Add in the egg and vanilla extract, mixing until well combined.
- In a separate bowl, whisk together the flour, cream of tartar, baking soda, and fine salt. Gradually add this dry mixture to the wet ingredients and blend until a dough forms.
- Press the dough evenly into the bottom of your prepared cake pan and create a smooth surface.
- Bake for about 20-25 minutes or until lightly golden around the edges. Allow the cake to cool completely in the pan before gently removing it.
Frosting
- In a large mixing bowl, beat together the unsalted butter and vanilla extract until creamy.
- Gradually add in the powdered sugar, mixing until well combined.
- Stir in the raspberry preserves and whole milk until the frosting reaches the desired consistency. Add red food coloring for more vibrancy if desired.
Assembly
- Once the cookie layer is completely cooled, spread a generous amount of raspberry buttercream on top.
- Swirl additional raspberry preserves into the frosting for a marbled effect and top with fresh raspberries if desired.
Notes
For added texture, sprinkle the cake with a light dusting of granulated sugar before baking. To improve flavor, use room temperature butter and eggs for better blending.
