# What You'll Need:
→ Cake
01 - 2.5 cups all-purpose flour
02 - 2 cups granulated sugar
03 - 1 cup whole milk, room temperature
04 - 1 cup unsalted butter, softened
05 - 4 large eggs, room temperature
06 - 2.5 teaspoons baking powder
07 - 0.5 teaspoon salt
08 - 1 tablespoon vanilla extract
→ Galaxy Buttercream
09 - 1.5 cups unsalted butter, softened
10 - 5 cups powdered sugar, sifted
11 - 0.25 cup whole milk
12 - 2 teaspoons vanilla extract
13 - Gel food coloring in black, navy blue, purple, pink, and teal
→ Decoration
14 - Edible gold and silver star sprinkles
15 - Edible glitter or luster dust
16 - White gel food coloring
# How to Make It:
01 - Preheat oven to 350°F. Grease and line three 8-inch round cake pans with parchment paper.
02 - In a large mixing bowl, cream together softened butter and granulated sugar until light and fluffy, approximately 3-4 minutes. Add eggs one at a time, beating thoroughly after each addition. Mix in vanilla extract.
03 - In a separate bowl, whisk together all-purpose flour, baking powder, and salt.
04 - Add dry ingredients to the creamed mixture in three additions, alternating with milk and beginning and ending with flour. Mix until just combined, being careful not to overmix.
05 - Divide batter evenly among prepared pans. Bake for 30-35 minutes until a toothpick inserted in the center emerges clean. Cool cakes in pans for 10 minutes, then transfer to wire racks to cool completely.
06 - Beat softened butter until creamy. Gradually add sifted powdered sugar, then milk and vanilla extract. Beat until light and fluffy, approximately 4-5 minutes.
07 - Divide buttercream into four or five separate bowls. Tint each portion with a different gel food coloring: black, navy blue, purple, pink, and teal, stirring until evenly colored.
08 - Place random spoonfuls of each colored buttercream onto a large piece of plastic wrap. Roll up tightly to form a log. Snip one end and transfer the log to a piping bag fitted with a large round tip.
09 - Position the first cake layer on a serving plate. Spread a thin layer of galaxy buttercream. Repeat with remaining layers, stacking evenly.
10 - Apply a thin, even crumb coat of buttercream over the entire cake exterior. Refrigerate for 20 minutes to set.
11 - Pipe and spread the marbled galaxy buttercream over the chilled cake, swirling gently with an offset spatula to create a seamless marbled galaxy effect.
12 - Using white gel food coloring and a food-safe paintbrush or splatter tool, flick delicate stars across the cake surface to enhance the celestial theme.
13 - Generously apply edible gold and silver star sprinkles across the cake surface. Finish with a light dusting of edible glitter or luster dust for a shimmering effect.
