A rich and moist Southern dessert featuring Coca-Cola for unique flavor, topped with a luscious chocolate frosting. Perfect for potlucks, gatherings, or whenever you need a comforting sweet treat.
Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking pan to prevent sticking.
In a large bowl, whisk together flour, sugar, baking soda, and salt.
In a saucepan, melt butter and stir in cocoa powder and Coca-Cola. Bring to a boil, then pour over dry ingredients and mix well.
Whisk together buttermilk, eggs, and vanilla, then add to the batter. Mix until smooth.
Fold in mini marshmallows, ensuring they are evenly distributed.
Pour the batter into the prepared pan and bake for 30-35 minutes, or until a toothpick comes out clean.
Melt butter in a saucepan, stir in cocoa powder and Coca-Cola, and bring to a boil. Remove from heat and whisk in confectioners' sugar and vanilla until smooth. Add pecans, if using.
Pour the warm frosting over the hot cake and spread evenly.
Let the cake cool completely in the pan before serving.
Notes
This Southern Coca Cola Cake is even better the next day as the flavors meld together. Store leftovers in an airtight container at room temperature for up to 3 days.