For the Cake: 1 cup butter or margarine, softened |
| 2 tablespoons grated lemon peel |
| 2 tablespoons grated orange peel |
| 2 teaspoons baking powder |
| 1 teaspoon ground cinnamon |
| 2 tablespoons orange juice |
| 2 tablespoons lemon juice |
| 1 package (3 ounces) cream cheese, softened |
| 1 1/2 to 2 cups confectioners' sugar |
| 1 teaspoon vanilla extract |