Preheat the oven to 350°F. Line a 12 cup muffin tin with muffin liners.
In a mixing bowl, sift the flour and cocoa powder together. Add in sugar, baking powder, baking soda, and salt. Whisk together.
1 cup All-purpose flour, ½ cup Dutch process cocoa powder, ¼ teaspoon Baking soda, 1 teaspoon Baking powder, ½ teaspoon Salt, 1 cup White granulated sugar
In a small pan over medium-low heat, heat the water and hot chocolate mix. Heat until hot and steaming.
½ cup Hot water, 2 tablespoon Hot chocolate mix
In a separate mixing bowl, whisk the Kefir milk, oil, vanilla, and eggs. Very slowly whisk in the hot chocolate. Pour the wet ingredients into the dry ingredients. Whisk until just combined.
⅓ cup Oil, 2 Large eggs, ½ cup Lifeway Kefir Plain Whole Milk, 2 teaspoon Pure vanilla extract
Fill the cupcake liners ⅔rds full. Bake for 17 minutes.
Open the over, and top the cupcakes with marshmallows. Bake for 2 more minutes. Take out of the oven and flatten the marshmallows down.
12 Marshmallows
Let the cupcakes sit in the pan for 10 minutes before transferring to a cooling rack. Cool completely before decorating.