INGREDIENTS
1/2 cup
butter, at room temperature plus more for muffin pans
2 cups
sugar
1/2 tsp
salt
2
large eggs
1 1/2 tsp
vanilla extract
1 1/2 tsp
baking soda
1 cup
buttermilk
1 3/4 cups
flour
3/4 cup
cocoa powder
3/4 cup
boiling water
1 cup
butter
2 cups
sifted powdered sugar
1
jar marshmallow cream
2 tsp
vanilla extract