For the dough
- 4–4½ cups all-purpose flour
- 1 packet Fleischmann’s® RapidRise® Instant Yeast
- ½ cup Dutch processed cocoa powder
- ½ cup granulated sugar
- 1 teaspoon kosher salt
- 1 cup warm milk (110–115°F)
- ½ cup canola oil
- 2 eggs
- 2 tablespoons unsalted butter, softened
For the filling
- 1 cup dark brown sugar
- 3 tablespoons Dutch processed cocoa powder
- ½ cup unsalted softened butter for spreading
- 1 teaspoon vanilla extract
For the marshmallow icing
- ¼ cup heavy cream
- 1 tablespoon butter
- 1 teaspoon vanilla extract or mint extract
- 2 cups mini marshmallow
- ½ teaspoon kosher salt
- 2 cups powdered sugar