My Southern mama passed this to me, and my kids are crazy over it!

10. Pour the frosting over the hot cake as soon as it comes out of the oven, smoothing it over the top.
11. Allow the cake to cool before serving. The frosting will set as it cools.
Variations & Tips
– For those with a less sweet tooth, consider reducing the sugar in the cake by 1/4 cup.
– If you don’t have buttermilk on hand, a good substitution is regular milk with a tablespoon of lemon juice or vinegar added to it.
– Don’t have marshmallows? Leave them out; the cake will still be delicious.
– To add more texture, fold in 1/2 cup of chocolate chips along with the marshmallows into the batter.
– A pinch of cinnamon added to the dry ingredients can bring a touch of warmth to the cake’s flavor.
– Don’t rush the frosting! If the cake hasn’t completely finished baking, it’s okay to wait. The frosting is best poured over the cake while it’s still warm, not necessarily piping hot.
– Remember to cut into squares while still in the pan for that classic, down-home presentation.