Description
This Galaxy Cake Roll is a stunning, colorful dessert featuring a light and fluffy Swiss roll cake swirled with vibrant purple, blue, pink, and black hues to mimic a galaxy. Filled with a creamy marshmallow buttercream frosting and decorated with edible silver stars, this cake roll is perfect for parties and special occasions. It’s baked to a tender crumb and rolled to create a beautiful swirl effect that captures the wonder of outer space.
Ingredients
Scale
Cake
- 4 large eggs, at room temperature
- 3/4 cup granulated sugar
- 1 teaspoon vanilla extract
- 1/4 cup whole milk
- 1 cup all-purpose flour
- 1 teaspoon baking powder
- 1/4 teaspoon salt
- Gel food coloring in purple, blue, pink, and black
Filling
- 1 cup unsalted butter, softened
- 2 cups powdered sugar
- 1 teaspoon vanilla extract
- 2 tablespoons heavy cream
- 1/2 cup marshmallow fluff
Decoration
- Edible silver stars or sprinkles (optional)
Instructions
- Preheat and Prepare Pan: Preheat your oven to 350°F (175°C). Line a 10×15-inch jelly roll pan with parchment paper and lightly grease it to prevent sticking.
- Beat Eggs and Sugar: In a large bowl, beat the eggs and granulated sugar together for 4 to 5 minutes until the mixture becomes pale, thick, and fluffy, which helps create a light texture.
- Add Vanilla and Milk: Mix in the vanilla extract and whole milk until combined smoothly with the egg mixture.
- Mix Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, baking powder, and salt to ensure even distribution before folding it into the wet ingredients.
- Combine Batter: Gently fold the dry ingredients into the wet ingredients just until combined, being careful not to overmix to keep the batter light.
- Color Batter: Divide the batter evenly into four small bowls. Tint each bowl with a different gel food coloring: purple, blue, pink, and black.
- Create Galaxy Pattern: Spoon small dollops of each colored batter randomly into the prepared pan. Using a toothpick, gently swirl the colors together to create a marbled galaxy effect, but avoid over-swapping to maintain distinct colors.
- Bake: Bake the cake in the preheated oven for 10 to 12 minutes, or until the cake springs back when lightly touched and a toothpick inserted comes out clean.
- Prepare for Rolling: While the cake bakes, lay a clean kitchen towel on the counter and dust it lightly with powdered sugar to prevent sticking.
- Invert and Roll Cake: Immediately after baking, invert the warm cake onto the sugared towel and carefully peel off the parchment paper. Starting from the short end, roll the cake up inside the towel. Let it cool completely rolled up to help it keep its shape without cracking.
- Make Filling: Beat the softened butter until creamy. Gradually add powdered sugar, then mix in vanilla extract, heavy cream, and marshmallow fluff. Beat the mixture until smooth and fluffy for a perfect spreading consistency.
- Fill and Roll Cake: Once the cake has cooled completely, carefully unroll it. Spread the filling evenly over the surface, leaving a small border on the edges. Gently roll the cake back up without the towel and place it seam side down on a serving plate.
- Chill: Refrigerate the cake roll for at least 1 hour to allow it to set and make slicing easier.
- Decorate and Serve: Before serving, garnish with edible silver stars or sprinkles if desired to enhance the galaxy theme. Slice into 10 pieces and enjoy.
Notes
- Use gel food coloring for the most vibrant and intense galaxy colors.
- Avoid over swirling the batter to keep the distinct colors of the galaxy pattern intact.
- Store the cake roll in the refrigerator for up to 3 days; bring to room temperature before serving for the best texture and flavor.
- Ensure the almond milk is at room temperature to maintain batter consistency if substituted.
