Cappuccino Brownies

Name: Cappuccino Brownies
Ingredients: Nonstick vegetable oil spray; 1/2 cup (1 stick) unsalted butter, diced; 3 ounces unsweetened chocolate, chopped; 1 1/2 cups sugar; 3 large eggs; 1 tablespoon instant espresso powder; 1 1/2 teaspoons vanilla extract; 1/4 teaspoon salt; 3/4 cup all purpose flour; 6 ounces high-quality white chocolate (such as Lindt or Perugina), chopped; 5 tablespoons heavy whipping cream; 1/4 teaspoon ground cinnamon