Preheat oven to 350F.
Cream together the butter and sugar until it's pale and smooth.
Add in pumpkin purée, applesauce, and vanilla extract and mix until incorporated.
Sift in pumpkin spice, baking powder, flour and salt and mix, gradually adding almond milk until you get a thin yet viscous batter.
Divide the batter between two greased and lined 8" cake pans. If you have heat strips, soak them and place them around your cake for even baking and flat tops.
Bake for 30-40 minutes, check to see if the cake is done by poking the middle of the cake with a cake tester or toothpick. It should come out either with moist crumbs sticking to it, or clean.
Remove from oven and let cool on a wire rack. After about 5 minutes, remove the cakes from the pan and let them rest on the wire rack.
Meanwhile, whip up the ermine frosting (see link in ingredients). Once the cake is cooled, begin to ice.
Start with a cake stand or cake board and add two thin smears of batter. This will act as a glue.
Place the first layer of the cake on the board, right side up. (I forgot to do this when I took the photos. Whoops). Add about 1-2 cups of icing and spread around in the middle.
Place the second layer, upside down so that the edges of the cake will be the sharp and clean sides from the cake pan.
Add a crumb coat of icing around the cake to seal in the moisture (a thin layer of icing all around the cake).
Ice the rest of the cake as desired. Keep in fridge, remove from fridge 30 minutes before serving.