Cream butter and sugar until light and fluffy. Add the slightly beat egg yolks and whole egg and continue beating until thoroughly blended. Sift the flour, measure, add baking powder and salt and sift again. Add the flour mixture alternately with the orange juice, beginning and ending with the dry ingredients.
Preheat oven to 325 degrees. Prepare a 3D lamb or rabbit or egg pan. Fill pan and place supports. Secure pan shut and place in oven. Bake for 50 or 60 minutes, or until cake is done. Remove from oven and allow to cool. Frost with Golden Frosting.
Cream shortening and butter until light and fluffy. Add the egg yolk (or an extra tablespoon of butter and milk) and orange rind and blend well. Add the sifted confectioner's sugar and orange juice alternately while beating constantly. Mix until well-blended and fluffy.