These brownies didn't turn out as moist as I would have liked, but I did enjoy the combination of white chocolate and semi-sweet chocolate on top.
3 ounces semisweet chocolate
1 ounce unsweetened chocolates
1/2 cup butter
2 tablespoons cocoa powder
1 cup sugar
1/4 teaspoon salt
1 teaspoon vanilla
1 cup flour
1/2 teaspoon baking powder
3/4 cup semisweet chocolate chips
3/4 cup white chocolate chips
Preheat oven to 350 degrees. Line a 9x9-inch pan with aluminum foil. Leave some foil over the edge for handles. Spray foil with cooking spray.
In a small bowl, melt the 3 ounces of semisweet chocolate, 1 ounce of unsweetened chocolate, and butter for one minute on high. Add cocoa powder and stir. The butter should be all melted, but the chocolate won't. Microwave another 30 seconds and stir until smooth.
In a large bowl, combined the sugar and salt. Stir in the melted chocolate mixture. Add the eggs, stirring after each addition. Stir in vanilla. Place flour and baking powder into sifter and sift into mixture.
Spread in pan and bake for 25 minutes. Remove from oven.
Sprinkle semisweet chips and white chocolate chips on top. Bake one more minute. Then use knife to swirl the two types of chocolate on top. Use foil handles to lift brownies from pan.