Preheat the oven to 350°F. Grease a bundt cake pan and lightly sprinkle with the unsweetened cocoa powder. Set aside.
2 teaspoons unsweetened cocoa powder
In a medium saucepan, heat the water until warm.
1 cup water
Add the butter, oil, and chopped semisweet chocolate. Cook on low, stirring constantly, until the chocolate is melted and the mixture is smooth.
¾ cup unsalted butter, ¾ cup canola oil, 4 ounces semisweet baking chocolate
Turn off the heat and stir in the sugar until smooth. Let cool for 5-10 minutes.
1 ½ cups granulated sugar
In a medium bowl, stir together the flour, cocoa mix, baking soda, and salt. Set aside.
3 cups Bob’s Red Mill All-Purpose Flour, ¾ cup dry hot cocoa mix, 2 ½ teaspoons baking soda, ½ teaspoon salt
Pour the cooled chocolate mixture into the bowl of a stand mixer fitted with a paddle attachment. Beat in the eggs one at a time until just combined.
Slowly add the flour mixture and mix until just combined.
Add the buttermilk and vanilla extract and mix until just combined.
¾ cup buttermilk, 1 tablespoon pure vanilla extract
Fold in the chocolate chips and mini marshmallows.
1 cup milk chocolate chips, 1 cup mini marshmallows
Pour batter into the prepared bundt cake pan.
Bake the cake for 45 minutes or until a toothpick comes out clean. Allow to cool for 10-15 minutes, then flip it onto a cooling rack. Cool completely before topping with the ganache.
After cake cools, make the ganache. Place the heavy cream, butter, and chocolate in a microwave safe bowl. Microwave these ingredients for 30 seconds at a time, stirring after each time until the mixture is melted and smooth. Let cool for about 5 minutes or until slightly thickened. Set aside.
⅓ cup heavy cream, 2 tablespoons unsalted butter, 4 ounces semisweet baking chocolate
Add the marshmallow creme to a large zip-top bag and cut off one corner. Squeeze the bag to drizzle the creme on the cooled cake.
1 cup marshmallow creme
Drizzle the chocolate ganache onto the cake.
Sprinkle the cake with the marshmallow bits. Allow the ganache to fully set before slicing and serving.
Mini Marshmallow Bits