Description
Moist and rich homemade Hostess chocolate cupcakes filled with fluffy marshmallow cream, topped with glossy chocolate ganache and the classic white icing swirl. A nostalgic snack cake, made entirely from scratch with simple ingredients and bakery-style flavor.
Ingredients
Scale
- 1 cup (130g) all-purpose flour
- 1 cup (207g) sugar
- 6 tbsp (43g) unsweetened cocoa powder
- 1 tsp baking soda
- 1/2 tsp salt
- 1 large egg
- 1/2 cup (120ml) milk
- 1/2 cup (120ml) vegetable oil
- 3/4 tsp vanilla extract
- 1/2 cup (120ml) hot water
- 1/4 cup (56g) unsalted butter (room temperature, for filling)
- 1/2 cup (58g) powdered sugar (for filling)
- 5 oz marshmallow creme
- 4 oz (113g) semi-sweet chocolate chips
- 6 tbsp (90ml) heavy whipping cream
- 2 tbsp unsalted butter (room temperature, for icing)
- 1/2 cup powdered sugar (for icing)
- 1 tbsp milk
- Splash of vanilla extract
Instructions
- Preheat oven to 300°F (148°C) and line a cupcake pan with liners.
- In a large bowl, whisk together flour, sugar, cocoa powder, baking soda, and salt.
- In a separate bowl, whisk together egg, milk, vegetable oil, and vanilla extract.
- Combine wet and dry mixtures, then slowly mix in hot water until smooth and thin.
- Fill cupcake liners slightly over halfway and bake for 18–23 minutes. Cool for 2 minutes in the pan, then transfer to a rack.
- To make the filling, beat butter until smooth, add powdered sugar gradually, then mix in marshmallow creme until fluffy.
- Core each cooled cupcake and fill the center with marshmallow filling. Replace the trimmed cupcake top.
- For the ganache, pour hot cream over chocolate chips, let sit 2 minutes, then whisk until smooth. Spread over cupcakes.
- To make the swirl icing, beat butter until smooth, add powdered sugar, then milk and vanilla. Pipe the swirl using a small round tip.
- Refrigerate cupcakes until ready to serve. Serve slightly chilled.
Notes
- Use unsweetened cocoa powder, not Dutch-processed, for best flavor.
- Don’t overfill the cupcake liners to avoid overflow.
- Practice the swirl design on parchment before piping onto cupcakes.
- Cupcakes can be made a day ahead and frosted before serving.
- Unfrosted cupcakes can be frozen for up to 3 months.
- Prep Time: 1 hour 30 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Oven
- Cuisine: American
Nutrition
- Serving Size: 1 cupcake
- Calories: 309
- Sugar: 30.6g
- Sodium: 180.2mg
- Fat: 15.8g
- Saturated Fat: 8g
- Unsaturated Fat: 6.5g
- Trans Fat: 0.3g
- Carbohydrates: 41.9g
- Fiber: 2g
- Protein: 2.7g
- Cholesterol: 28.2mg