"I came up with this cake for my Dad's birthday. I love Furr's Millionaire Pie and wondered if it could be converted to a type of cake. This is my adaption of Furr's Millionaire Pie in a cake, and it's been a hit with family and friends! I started off with a Rainy Day Yellow cake (Rainy Day Yellow Cake), but used one whole cup of butter (which is reflected in this recipe as well as adaptations to the directions). For the filling, I used Furr's original recipe, then added the pecans (doubled the pecans) and pineapple from the recipe's whipped topping into the filling. Then for the topping, I just left it as a whipped topping. I didn't want the topping to have too much texture or look too funky, which is why I chose to include the pineapple and pecans into the filling instead. This cake is very dense and very sweet. It's a little bit of a mix between Furr's Millionaire Pie and pineapple upside down cake. I may actually add more pineapple the next time I make it. I hope that you enjoy it!!..."