Preheat oven to 350° and line a 9 x 13 baking dish with parchment paper.
Using either a candy melting pot or a double boiler, combine the white chocolate and butter, and whisk until melted and completely smooth.
Transfer the mixture into another large bowl and whisk in the sugar until completely combined and smooth.
Whisk in the eggs, one at a time, mixing well before adding the next.
Stir in the vanilla extract.
In a separate mixing bowl, whisk together the flour and salt until well combined.
Slowly add the dry ingredients into the wet until the batter is completely mixed and smooth.
Fold in the 1 cup of raspberries and 1 cup of white chocolate chips.
Pour batter into a baking dish, then top with the remaining 1/2 cup of raspberries and 1/2 cup of white chocolate chips.
Bake in the oven for 20 minutes, or until the top is golden brown and a toothpick comes out clean.
Cover pan with foil, then bake for an additional 5 minutes.
Remove from oven and allow to cool completely before cutting into bars.