Chocolate Orange Cake Recipe | Trisha Yearwood | Food Network

Ingredients

• 2 tablespoons unsalted butter, softened
• 1/2 cup plus 1 tablespoon unsweetened cocoa powder
• 3 cups all-purpose flour
• 1 1/2 cups granulated sugar
• 2 teaspoons baking soda
• 1 teaspoon salt
• 1 teaspoon ground cinnamon
• 2 cups freshly squeezed orange juice, plus 2 tablespoons finely grated zest
• 3/4 cup mayonnaise
• 2 tablespoons balsamic vinegar
• 1 teaspoon vanilla extract
• 1 cup confectioners' sugar
• 2 tablespoons unsweetened cocoa powder
• 2 tablespoons freshly squeezed orange juice