Mississippi Mud Cake – tender chocolate cake layered with gooey, melted marshmallows and warm chocolate frosting. The difference between Mississippi Mud Cake and Mississippi Mud Pie? Mississippi mud cake and Mississippi mud pie are “distant cousins”. Both are decadent, layered chocolate desserts that are said to have hailed from the state of Mississippi, and both resemble the color of mud — hence the names! Mississippi mud pie consists of a chocolate cookie pie crust, followed by a brownie layer, topped with a layer of chocolate pudding, and sealed with whipped cream on top. So, while these desserts are alike in some ways, they are mostly very different.
INGREDIENTS:
FOR THE CAKE
2 large eggs
1 cup whole or 2% milk
1/2 cup sour cream
1 cup plus 1 tablespoon vegetable oil, divided
2 cups all-purpose flour
1 cup packed light brown sugar
1 cup granulated sugar
1/2 cup Dutch-processed cocoa powder
1 1/2 teaspoons baking powder
1 teaspoon baking soda
1 tablespoon vanilla extract
1/2 teaspoon kosher salt
1 (10-ounce) bag mini marshmallows (about 4 cups)
FOR THE FROSTING
8 tablespoons (1 stick) unsalted butter
1/3 cup whole or 2% milk
1/4 cup Dutch-processed cocoa powder
2 teaspoons vanilla extract
1/4 teaspoon kosher salt
2 1/2 cups powdered sugar
INSTRUCTIONS:
Place 2 large eggs, 1 cup whole or 2% milk, and 1/2 cup sour cream in a medium bowl and let sit until room temperature, 30 to 45 minutes.
Arrange a rack in the middle of the oven and heat the oven to 350ºF. Coat a 9×13 baking dish with 1 tablespoon of the vegetable oil.
Place 2 cups all-purpose flour, 1 cup packed light brown sugar, 1 cup granulated sugar, 1/2 cup Dutch-processed cocoa powder, 1 1/2 teaspoons baking powder, and 1 teaspoon baking soda in a large bowl and whisk until combined.
Add 1 cup vegetable oil, 1 tablespoon vanilla extract, and 1/2 teaspoon kosher salt to the egg mixture and whisk until smooth and combined. Pour over the flour mixture and stir with a wooden spoon or flexible spatula until just combined.
Transfer into the baking dish. Bake until a toothpick inserted in the center comes out clean, 30 to 33 minutes.
Remove the cake from the oven and evenly scatter 10 ounces mini marshmallows (about 4 packed cups) over the cake. Return to the oven and bake until the marshmallows start to melt, 2 to 3 minutes.
Place the baking dish on a wire rack and let the cake cool for 30 minutes. Meanwhile, prepare the frosting: melt 1 stick unsalted butter in a large saucepan over medium heat. Add 1/3 cup whole or 2% milk, 1/4 cup Dutch-processed cocoa powder, 2 teaspoons vanilla extract, and 1/4 teaspoon kosher salt. Whisk until combined. Slowly sift in 2 1/2 cups powdered sugar and whisk until smooth, about 1 minute. Remove the saucepan from the heat and let cool until the cake is ready.
Slowly pour the frosting over the warm cake and spread into an even layer. Let sit until the frosting is set, about 30 minutes, before slicing and serving.
RECIPE NOTES
Storage: Leftovers can be refrigerated in an airtight container for up to 4 days.
As posted on TheKitchn.com