Perfect Mississippi Mud Cake

• 2 cups white sugar
• 2 cups all-purpose flour
• 1/2 teaspoon salt
• 1/2 cup unsalted butter
• 1/2 cup vegetable oil
• 1/2 cup cocoa powder
• 1/4 cup water
• 1/2 cup buttermilk
• 2 eggs
• 2 teaspoons vanilla extract
• 1 teaspoon baking soda
• Icing:
• 1/2 cup unsalted butter, softened
• 6 tablespoons milk
• 3 tablespoons cocoa powder
• 1 (16 ounce) package confectioners' sugar
• 1 teaspoon vanilla extract
• 1 cup chopped pecans
• 1 (10.5 ounce) package miniature marshmallows

1. Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9x13-inch baking pan.
2. Mix white sugar, flour, and salt together in a large bowl.
3. Combine 1/2 cup butter, vegetable oil, 1/2 cup cocoa powder, and water in a saucepan; bring to a boil and stir until smooth. Remove from heat and stir into flour mixture.
4. Beat buttermilk, eggs, 2 teaspoons vanilla extract, and baking soda together in a bowl; mix into chocolate mixture. Pour batter into prepared baking pan.
5. Bake in the preheated oven until a toothpick inserted into the cake comes out clean, about 25 minutes. Cool slightly.
6. Combine 1/2 cup butter, milk, and 3 tablespoons cocoa powder in a saucepan; bring to a boil and remove from heat. Whisk in confectioners' sugar and 1 teaspoon vanilla extract. Fold in pecans.
7. Sprinkle marshmallows over slightly cooled cake; pour warm icing over marshmallows. Cool cake before serving.

white sugar, flour, salt, unsalted butter, vegetable oil, cocoa powder, water, buttermilk, eggs, vanilla, baking soda, icing, unsalted butter, milk, cocoa powder, sugar, vanilla, pecans, marshmallows

Taken from www.allrecipes.com/recipe/232461/perfect-mississippi-mud-cake/ (may not work)