This is a delicious, easy to make cake with a lovely texture, best when topped with cream cheese icing.
1 Preheat the oven to 350 degrees F (175 degrees C). Grease a 9×13 inch baking dish.
2 In a large bowl, cream together the butter, shortening, and sugar until light and fluffy. Beat in the eggs one at a time, mixing well after each one. Combine the flour, baking powder, baking soda, nutmeg, and salt; stir into the creamed mixture alternately with the buttermilk until just blended. Pour the batter into the prepared pan.
3 Bake for 40 minutes in the preheated oven, until the cake springs back when pressed lightly in the center. Cool completely before frosting.