Can I use regular marshmallows inside the Cocoa Marshmallow Cupcakes?

It is not recommended. If you bake a whole marshmallow inside the batter, it will melt into a hollow, sticky cavity and often disappear entirely into the cake. The marshmallow fluff filling method described here ensures a consistent, creamy center that stays gooey even after the cupcake has cooled.

Why is the batter so liquidy?

The addition of hot water thins the batter significantly, making it much runnier than a standard butter-creamed cake batter. This is intentional and ensures a very moist, steamed-cake texture. Do not add extra flour to thicken it, or your cupcakes will turn out dry and dense.

Can I make these into mini cupcakes?

Yes, this batter works well for minis. You will need to reduce the baking time to approximately 10–12 minutes. Be aware that filling mini cupcakes can be tricky due to their size, so you might opt to skip the filling step and simply frost them generously.

What brand of hot cocoa mix works best?

Any standard packet mix works well for this recipe, such as Swiss Miss or Nestle. However, avoid "sugar-free" or "diet" varieties for baking, as the artificial sweeteners can alter the texture and aftertaste of your frostings and fillings.

Cocoa Marshmallow Cupcakes: Gooey Hot Chocolate Treat

Hot Cocoa Marshmallow Cupcakes

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These Cocoa Marshmallow Cupcakes are a triple-layered tribute to hot chocolate, featuring a moist oil-based chocolate cake, a gooey marshmallow cream filling spiked with hot cocoa mix, and an airy marshmallow buttercream frosting. They capture the nostalgic warmth of a winter mug in a decadent, handheld dessert perfect for holiday gatherings.

Author: Elena
Prep Time: 25 minutes
Cook Time: 23 minutes
Total Time: 48 minutes
Yield: 12-14 Cupcakes
Category: Dessert
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

1 1/2 cups cake flour
1/3 cup cocoa powder (natural or Dutch-processed)
1 tsp baking soda
1/4 tsp baking powder
1/4 tsp salt
1/2 cup granulated sugar
1/2 cup vegetable oil
1/2 cup whole milk
1 large egg
1 1/2 tsp vanilla extract
1/2 cup hot water
3/4 cup marshmallow fluff (for filling)
1 packet hot cocoa mix (for filling)
1 tbsp milk (for filling)
1/2 cup unsalted butter, softened to room temperature
2 cups powdered sugar
2 tsp vanilla extract (for frosting)
1 tbsp heavy whipping cream or milk (for frosting)
1 packet hot cocoa mix (for frosting)
3/4 cup marshmallow fluff (for frosting)
Optional: Mini marshmallows and cocoa powder for garnish

Instructions

Preheat oven to 350°F (175°C) and line a 12-well cupcake tin with paper liners.
In a medium bowl, whisk together the cake flour, baking soda, baking powder, cocoa powder, and salt to remove lumps and aerate.
In a large bowl, blend the vegetable oil, egg, sugar, whole milk, and 1 1/2 tsp vanilla extract until combined.
Gradually stir the dry mixture into the wet ingredients until just incorporated.
Pour in the hot water and whisk gently until the batter is smooth and thin.
Fill cupcake liners 3/4 full and bake for 20 to 23 minutes, or until a toothpick inserted into the center comes out clean.
Let cupcakes cool in the tin for 5 minutes, then transfer to a wire rack to cool completely.
To make the filling, mix 3/4 cup marshmallow fluff, one packet of hot cocoa mix, and 1 tbsp milk in a small bowl until smooth; transfer to a piping bag.
To make the frosting, cream the softened butter, then beat in powdered sugar, 2 tsp vanilla, and cream until fluffy. Fold in the second cocoa packet and remaining 3/4 cup marshmallow fluff, whipping on high for 1–2 minutes.
Core the center of each cooled cupcake, pipe in the filling, frost generously, and garnish as desired.

Notes

Butter Temperature: Ensure butter is truly soft (room temperature) for the frosting to prevent lumps and separation when mixing with the fluff.
Batter Consistency: The batter will be very thin and liquid after adding the hot water; this is normal and ensures a moist crumb.
Storage: Store frosted cupcakes in an airtight container in the refrigerator for up to 3–4 days; bring to room temperature before serving.
Variation: Add 1/2 tsp peppermint extract to the frosting for a Peppermint Hot Cocoa twist.

Find it online: https://www.recipebyelena.com/cocoa-marshmallow-cupcakes/