Next, we’ll whip up the cake. In a large bowl, combine the flour, sugar, baking powder, baking soda, and salt. In another bowl, beat the softened butter, then mix in the buttermilk, egg whites, and vanilla until it’s all smooth and homogenous. Gradually incorporate the dry ingredients into the wet mixture, then gently fold in the white chocolate chips. This is the part where your kitchen will start smelling incredible!
Once your batter is ready, divide it between the two cake pans over the cooled cheesecake filling. Bake them at 350°F (175°C) for about 25-30 minutes or until a toothpick inserted into the cake comes out clean. After baking, let the cakes cool in the pans for about 10 minutes before transferring them to a cooling rack to cool completely.
When everything is cool, it’s time to assemble your masterpiece! Place one layer of cake on your serving platter. Spread or pipe some frosting over it (cream cheese frosting pairs perfectly!) and carefully place the second layer on top. You can also frost the entire cake with any leftover frosting for a beautiful finish.
Pro Tips for Best Results
I tested this recipe three ways, and I found that using room temperature ingredients really helps with the mixing process. It lets the butter and cream cheese blend together so much easier, which gives you that light, airy texture in the end result. Don’t rush this step!
Another tip that I swear by is to really take your time cooling the cheesecake layer. If it’s even slightly warm, it can affect the cake’s texture. I often wait for it to chill completely in the fridge before I assemble the layers; it makes a big difference!
Lastly, when folding in those white chocolate chips, be gentle! You want to keep that fluffy texture intact, and over-mixing can deflate the batter. Patience pays off here!
Common Mistakes to Avoid
One common pitfall is not properly greasing the cake pans. Trust me, I learned the hard way when my beautiful cakes stuck to the bottom and didn’t come out smoothly. I recommend using parchment paper on the bottom and greasing the sides of the pans for extra assurance. (See the next page below to continue…)