Tastes just like Cracker Barrel's Coca-Cola Cake

This is a seriously yummy cake, but be warned that you will get a sugar high just from making the cake. I mean really, could they add any more sugar?

Double Chocolate Fudge Coca-Cola Cake (like Cracker Barrel's)

Prep Time : 1 hr. 25 mins.
Serves: 18

1 cup real butter - divided
1 1/4 cup Coca-Cola - divided
1 oz. square semi-sweet baking chocolate
3/4 cup miniature marshmallows
2 1/3 cups all-purpose flour
1 1/4 cup unsweetened cocoa powder- divided
1 1/2 tsp. baking powder
1 tsp. baking soda
1/2 tsp. salt
2 cups granulated sugar
1/2 cup shortening
1/2 cup vegetable oil
3 tsp. vanilla extract - divided
2 eggs
3/4 cup buttermilk
1/4 cup chocolate syrup
3 cups powdered sugar

-In a saucepan, bring 1/2 cup butter, 1 cup cola, and chocolate to a boil.
-Remove from heat and stir in marshmallows until dissolved.
-Set aside and allow to cool to room temperature.
-In a bowl, combine flour, 3/4 cup cocoa powder, baking powder, baking soda, and salt; set aside.
-With an electric mixer, beat together sugar, shortening, oil, and 2 tsp. vanilla until fluffy; beat in eggs and buttermilk.
-Beat in half of the dry mixture scraping the sides of the bowl often.
-Beat in cooled cola mixture.
-Add remaining dry mixture and beat for 4 minutes. Batter will be thick.
-Pour batter into a greased and floured 13x9x2 baking pan.
-Bake on top rack of a 350 degree oven for 35-40 minutes or until toothpick inserted in center comes out clean.
Frosting:
-Cream butter with electric mixer.
-Beat in 1/2 cup cocoa powder, 1/4 cup cola, chocolate syrup, and 1 tsp. vanilla.
-Slowly add powder sugar, scraping the sides of the bowl often, while beating with the mixer.
-If frosting seems dry, add small amounts of cola until you reach desired consistency.
-Frost cake while warm.

Serve with natural vanilla bean ice cream.

Note: If you are like me, you want a piece of cake asap. It is really good asap, but it's even better once it has rested for a while and the frosting has set. ENJOY!