Ingredients
Equipment
Method
Make the muffin batter
- Heat the oven to 375°F and line a standard 12-cup muffin pan with paper liners.
- Whisk the flour, cocoa powder, sugar, baking powder, baking soda, and salt in a large bowl.
- In a separate bowl, whisk the eggs, buttermilk, oil, and vanilla until combined.
- Pour the egg mixture into the flour mixture and stir just until no dry streaks remain, then fold in the chocolate chips.
- Divide the batter evenly among the muffin cups and bake for 15 minutes.
Bake and top the muffins
- Carefully remove the pan from the oven and scatter the mini marshmallows over the muffins, dividing them evenly.
- Return the pan to the oven and bake for 3 to 5 minutes, until a toothpick inserted into the center of a muffin comes out with a few moist crumbs.
- Cool the muffins in the pan for 5 minutes, then transfer them to a wire rack.
Notes
Stir the batter only until no dry streaks remain to keep the muffins tender. Store covered in the refrigerator for up to 4 days; freeze for up to 3 months.
