Caramel cake layers with apple pie filling, salted caramel, white chocolate buttercream, and a brown sugar and cinnamon dusting.
Preheat your oven to 350 degrees F. Spray three 8-inch cake pans (or four 6-inch pans) with nonstick spray, line the bottom with parchment paper and spray again. Set aside.
In a medium sized mixing bowl, combine the flour, baking powder and salt. Whisk to combine and then set aside.
In the bowl of a stand mixer fitted with the paddle attachment, combine the butter and the sugar. Mix on medium-high speed for about 3 to 5 minutes, until the mixture is light and fluffy.
Add the eggs, one at a time, scraping down the sides and bottom of the bowl to make sure all of the butter and sugar are mixed well with the eggs. Add the vanilla.
With the mixer on medium-high speed, add the dulce de leche and mix for a couple minutes. The mixture will get a little lighter in color.
With the mixer on low speed, alternately add the dry ingredients and the milk, starting and ending with the dry mixture. Mix until just combined.
Pour the batter into your three 8-inch pans (or four 6-inch pans) and bake until a toothpick inserted in the center of the cake comes out with a few moist crumbs on it, about 20 to 22 minutes.
Allow the cakes to cool in the pan on wire racks for about 10 to 15 minutes and then invert onto wire racks (TIP: spray the racks with non stick spray) and allow to cool completely.
Cakes can be made ahead of time and wrapped in plastic wrap and frozen until ready to use. Be sure to give the cakes about 30 to 60 minutes at room temperature before stacking and decorating.
In a microwave safe bowl, heat the cream and then pour it over the white chocolate to melt. Stir until the mixture is smooth and silky. If needed heat the mixture for another 20 to 30 seconds and stir until the chips are melted. Set aside.
Slowly add the cooled white chocolate ganache while mixing on medium-low speed.
Add the vanilla and increase the speed to medium-high and beat the frosting for five minutes, until light in color and texture.
Remove the bowl from the mixer and use a wooden spoon and mix by hand to stir out the air bubbles.