This Pumpkin Cake Recipe is layered between delicious chocolate and caramel frosting. Topped with walnuts, this cake is hard to resist!
Whip butter, vanilla, and caramel syrup together until well blended. Whip powdered sugar into mixture until incorporated. Scrape the sides of the bowl and whip again until light in color, 1-2 minutes. Remove from bowl and divide into two equal portions. Set aside.
Cut cooled cake into 4 equal strips width wise. Carefully remove 1 strip of cake and place onto serving platter. Top with half of chocolate frosting, being sure to have thicker frosting around the edges and thinner frosting in the middle. Repeat this process alternating the chocolate and caramel frostings, finishing with caramel. Top cake with chopped walnuts and toffee bits. Serve.