Coca-Cola Cake

Name: Coca-Cola Cake
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 2 cups all purpose flour; 1 teaspoon baking soda; 1 1/2 cups sugar; 1 cup butter; 1 1/2 cup mini marshmallows; 1/4 cup cocoa; 1 cup Coca-Cola; 1/2 cup buttermilk; 2 eggs; 2 teaspoons vanilla; 1/2 cup butter; 1/3 cup Coca-Cola; 3 tablespoons cocoa; 4 cups powdered sugar; 1 tablespoon vanilla; 1 cup pecans, coarsely chopped