Preheat oven to 350 degrees Fahrenheit. In the bowl of an electric mixer, cream together butter, both sugars, egg and vanilla. Add flour, baking soda and salt and mix until incorporated. Reserve 1/4 c. white chocolate chips. Gently stir in raspberries and remaining white chocolate chips.

Spray a 9"x13" cake pan with nonstick baking spray. Spread/press dough evenly into pan. Bake for approximately 24-26 minutes.

Melt reserved 1/4 cup chocolate chips and drizzle over cooled bars. Cut into squares and serve.