Directions

1. Preheat oven to 350 degrees F (175 degrees C). Grease and flour 3 (9 inch) pans. Sift together the flour, baking powder, and salt. Set aside.
2. In a large bowl, cream together the shortening and sugar until light and fluffy. Beat in the eggs one at a time, then stir in the vanilla. Beat in the flour mixture alternately with the milk. Divide batter into 3 bowls.
3. In first bowl, stir in lemon zest and yellow food coloring; pour into prepared pan. In second bowl, Stir in orange zest and orange food coloring; pour into second prepared pan. In third bowl Stir in lime zest and green food coloring; pour into third prepared pan.
4. Bake in the preheated oven for 30 minutes, or until a toothpick inserted into the center of the cake comes out clean. Let cool in pan for 5 minutes, then turn out onto a wire rack and cool completely.
5. Assemble the cake: Put layers together with Lemon Filling. Frost sides and top with Orange Cream Frosting. Refrigerate until serving.