Triple Butterscotch Cake

Borrowed from here, this cake sounds complicated but delicious! Might have to make one for our wedding anniversary coming up in a month's time.

Yield: One (2 layer) 8-inch cake

Ingredients:

For the cake:
2 1/2 sticks (10 ounces) butter, softened
2 1/2 cups dark brown sugar, packed
2 tablespoons canola oil
4 large eggs
2 tablespoons dark rum
1 tablespoon vanilla extract
4 cups flour
1 teaspoon baking powder
1 teaspoon baking soda
1 1/2 teaspoons salt
1 1/2 cups sour cream
1 1/2 cups finely chopped pecans

For the butterscotch buttercream:
1 pound butter, softened (Yep, a pound. You read it correctly.)
2 cups dark brown sugar, packed
1 cup heavy cream
1/2 teaspoon salt
1 tablespoons dark rum
2-2 1/2 cups confectioner’s sugar***I actually ended up using about 3 cups because the consistency was not what I wanted.

For the butterscotch sauce:
3/4 cup dark brown sugar
6 tablespoons butter
1/2 cup light corn syrup
1/4 teaspoon salt
1/2 cup heavy cream

Method:
1. For the cake: Preheat the oven to 325F degrees.
2. In the bowl of an electric mixer fitted with the paddle attachment, beat the butter with the brown sugar until light and fluffy, about 3 minutes.
3. Beat in the oil until well combined.
4. Add the eggs, one at a time, beating well after each addition and stopping to scrape down th sides of the bowl as necessary.
5. Beat in the rum and the vanilla.
6. In a medium bowl, whisk together the flour, baking soda, baking powder, and salt.
7. Add the flour mixture to the batter in two additions, alternating with the sour cream.
8. Mix in the chopped pecans, and continue to beat at medium speed for one minute more.
9. Butter and flour your 8-inch cake pans.
10. Divide the cake batter among the pans, filling about 2/3 full.
11. Bake the cake at 325F degrees for 40-50 minutes, until it is golden brown and a cake tester inserted emerges clean.
12. Transfer both the cake to a wire rack to cool completely.
13. For the buttercream: Melt 8 tablespoons of the butter in a medium saucepan over medium heat until it turns deep golden brown and fragrant, about 6 minutes.
14. Add the brown sugar, cream, and salt, stirring constantly until the sugar dissolves. Bring the mixture to a boil, stirring constantly, and cook for 3 minutes longer.
15. Transfer the mixture to the bowl of an electric mixer fitted with the paddle attachment, and beat it at high speed until the bowl feels cool to the touch, 8-10 minutes.
16. Beat in the rum.
17. With the mixer running on medium speed, add the remaining butter, one tablespoon at a time, beating until incorporated. Continue to beat the mixture until it is smooth and creamy.
18. Add enough confectioner’s sugar to the mixture to achieve a thick and spreadable consistency. Cover and refrigerate until ready to use.
19. For the sauce: Place the brown sugar, butter, corn syrup, and salt in a medium saucepan set over medium heat. Cook, stirring constantly, until the sugar dissolves.
20. Bring the mixture to a boil and cook for 2 minutes, stirring frequently.
21. Remove the mixture from the heat and mix in the cream.
22. Return the saucepan to the heat and cook for 2 minutes more; let cool to lukewarm.
23. Once everything is completely cooled, place a layer of frosting on one top of a cake, followed by a thin layer of the butterscotch sauce.
24. Place the other cake layer on top, and spread a thin layer of frosting over the entire cake.
25. Refrigerate for at least one hour (this will help “glue” crumbs down and serve as a nice, smooth canvas for you to apply the “real” frosting later.)
26. Once set, decorate the cake as desired. Garnish with extra pecans (optional.)