Dark Chocolate Marbled Pumpkin Cheesecake on a Brownie Crust Recipe - Food.com

Ingredients

• 4 tablespoons butter
• 2 ounces bittersweet chocolate, coarsely chopped
• 1/4 cup sugar
• 1 large egg, lightly beaten
• 1/4 cup flour
• 1/2 teaspoon baking powder
• 1/8 teaspoon salt
• 1/4 cup walnuts (optional)
• 4 ounces bittersweet chocolate, chopped
• 3 (8 ounce) packages cream cheese, softened
• 1 cup sugar
• 4 large eggs, at room temperature
• 1 1/2 tablespoons cornstarch
• 1 teaspoon vanilla extract
• 16 ounces canned pumpkin puree
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon grated fresh nutmeg
• 1 pinch ground cloves