2 T. Earth balance butter
1 Tbsp maple extract
2 tsp sea salt
1 1/2 cup agave nectar
1 Tbsp coconut milk
1 1/2 cups sifted cocoa powder, or more if needed
3/4 tsp sea salt
1 Tbsp pure vanilla extract
2 tsp maple extract
2 1/2 cups toasted pecans
1 cup toasted pumpkin seeds
Preheat the oven to 375 degrees and position rack in center of oven. Line two six-inch-diameter cake pans with 2-inch-high sides with parchment paper. Coat parchment paper and pan sides with nonstick spray. Whisk flour, baking soda, spices, salt, and sugar in a large bowl to blend well. Whisk pumpkin, oil, maple extract, vanilla extract, and cider together in small bowl to blend well, then whisk into the flour mixture until well blended. Whisk in cider vinegar until pale swirls form in the batter and it is well combined. Transfer cake batter to prepared pan and bake cakes until tester inserted into center comes out clean, about 25-30 minutes. Cool cake completely in pan on rack, about 1 hour. Cut around sides of pan to loosen. Turn cake out onto platter; peel off parchment paper. Let cool completely, then place in the fridge to chill until very cold to make slicing easier. When chilled, slice cakes horizontally in half so that you have 4 layers.
To make caramel, in a small saucepan over medium-high heat, bring the sugar, agave nectar and water to a boil, stirring well at first to dissolve the sugar. Turn down the heat to low and cook until the liquid is deep amber in color, about 15-20 minutes, swirling the pan occasionally to ensure even cooking. Remove the pan from heat. Very carefully (the mixture will bubble), stir in the coconut milk, earth balance butter vanilla, maple extract, and sea salt until smooth. Let cool until it is a thicker constency before using on cake (it gets thicker as it cools).
To make frosting, whisk all ingredients together in a medium bowl until very smooth, adding more cocoa powder if the frosting is not thick enough, or more coconut milk if too thick. Place a layer of cake on a plate, and spoon about 1/2 cup frosting over, almost to the sides, then scatter with about 1/2 cup of toasted pecans and pumpkin seeds and drizzle with a heaping 1/4 cup caramel. Top with a another cake layer and repeat. Top with another cake layer, another frosting layer, pecans, pumpkin seeds, caramel, then the top cake layer. Spread the remaining frosting over the top and the sides of the cake, and arrange whole pecans and pumpkin seeds decoratively on the top of the cake. Drizzle with caramel, and let it drip down the sides.
*if you would like a 4 layer 9 inch cake, double this entire recipe and bake in two 9 inch cake pans.