01 -
Preheat oven to 350°F (175°C). Grease and flour two 9-inch round cake pans to prevent sticking.
02 -
In a medium bowl, whisk together all-purpose flour, baking powder, baking soda, and salt until uniform.
03 -
Using an electric mixer on medium speed, cream unsalted butter and granulated sugar in a large bowl until light and fluffy, about 3 to 4 minutes.
04 -
Beat in the eggs one at a time, ensuring each is fully blended before adding the next. Mix in vanilla extract until fully incorporated.
05 -
In a separate bowl, mix whole milk and sour cream together until smooth.
06 -
Alternate adding the dry flour mixture and the milk-sour cream blend to the creamed butter, beginning and ending with dry ingredients. Mix until just combined.
07 -
Gently fold in the melted white chocolate until evenly distributed throughout the batter.
08 -
Evenly pour batter into the prepared pans. Smooth the tops and bake for 30 to 45 minutes, or until a toothpick inserted into the center comes out clean.
09 -
Allow cakes to cool in pans for 10 minutes, then transfer to wire racks to cool completely. Spread raspberry jam over one cake layer, sprinkle with fresh raspberries, and top with the second layer.
10 -
Beat heavy whipping cream with powdered sugar and vanilla extract on high speed in a large bowl until stiff peaks form.
11 -
Generously frost the assembled cake with whipped cream. Garnish as desired and serve chilled or at room temperature.