all purpose flour baking powder baking soda bittersweet chocolate brown sugar butter/margarine buttermilk cake cake flour chocolate chocolate chip confectioners sugar corn syrup cornstarch cream cheese crust egg egg white egg yolk flour granulated sugar heavy cream light brown sugar milk pecan pie filling powder sugar powdered sugar pure vanilla extract salt semi sweet chocolate semisweet chocolate semisweet chocolate chip sour cream sugar unsalted butter unsweetened baking chocolate unsweetened cocoa unsweetened cocoa powder vanilla vanilla extract vanilla frosting vegetable oil walnut water whipped cream whole milk