I made this and it was delicious. I did cut the butter and powdered sugar in the icing recipe in half. It just seemed nuts to use a whole pound of butter for a 2 layer. Still worked great.
Lemon Velvet Cake
Ingredients- 1¼ cups sifted all purpose flour
 - 1½ cups sifted cake flour
 - ½ teaspoon baking soda
 - 1½ tsp baking powder
 - 1 teaspoon salt
 - 1½ cups sugar
 - ⅔ cup vegetable oil
 - ⅓ cup vegetable shortening at room temperature
 - 1 tsp good quality vanilla extract
 - 2 tsp pure lemon extract
 - 3 large eggs
 - 1½ cups buttermilk
 - zest of two small or one large lemons, grated and finely chopped
 
- 8 cups icing sugar (powdered sugar)
 - 2 cups unsalted butter
 - 1 tsp pure lemon extract
 - 1 tsp minced lemon zest (optional)
 - aproximately 4 tbsp milk
 
Original Recipe Lemon Velvet Cake : Click Here
