Preheat the oven to 350°F (175°C).
Grease and flour two 9-inch round cake pans.
In a mixing bowl, cream the butter and sugar until light and fluffy.
Add eggs one at a time, mixing well after each addition.
Stir in vanilla extract and melted white chocolate.
In a separate bowl, combine flour and baking powder.
Gradually add the flour mixture to the butter mixture, alternating with milk.
Fold in fresh raspberries gently.
Divide the batter between the prepared pans.
Bake for 25 minutes or until a toothpick comes out clean.
Let cakes cool in the pans for 10 minutes, then transfer to wire racks to cool completely.
Whip the cream with powdered sugar until stiff peaks form.
Layer the cakes with whipped cream and remaining raspberries.