Pisces-Themed Galaxy Cake (Printable)

Celestial layered cake featuring swirls of blue and purple buttercream, topped with shimmering edible glitter.

# Components:

→ Vanilla Sponge

01 - 2 ½ cups all-purpose flour
02 - 2 ½ teaspoons baking powder
03 - ½ teaspoon salt
04 - 1 cup unsalted butter, room temperature
05 - 2 cups granulated sugar
06 - 4 large eggs, room temperature
07 - 1 tablespoon pure vanilla extract
08 - 1 cup whole milk, room temperature

→ Galaxy Buttercream

09 - 1 ½ cups unsalted butter, room temperature
10 - 5 cups powdered sugar, sifted
11 - ¼ cup whole milk
12 - 2 teaspoons vanilla extract
13 - Gel food coloring in navy blue, purple, black, and teal
14 - Edible glitter in silver, blue, or iridescent

→ Decoration

15 - White fondant, optional for Pisces symbols or stars
16 - Silver star sprinkles, optional

# Method:

01 - Preheat oven to 350°F. Grease and line three 8-inch round cake pans with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, and salt until evenly distributed.
03 - In a large bowl, cream butter and sugar until light and fluffy, approximately 3 to 4 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in vanilla extract until fully incorporated.
05 - Alternate adding flour mixture and milk to butter mixture, beginning and ending with flour. Mix until just combined, avoiding overmixing.
06 - Divide batter evenly among prepared pans. Bake for 25 to 30 minutes until a toothpick inserted in center comes out clean.
07 - Cool cakes in pans for 10 minutes, then turn out onto wire racks to cool completely.
08 - Beat butter until creamy. Gradually add powdered sugar, milk, and vanilla extract; beat until smooth and fluffy.
09 - Divide buttercream into four bowls. Tint each with different galaxy colors using gel food coloring: navy blue, purple, teal, and black.
10 - Place alternating spoonfuls of each colored buttercream onto cake layers and sides. Use offset spatula to swirl gently for celestial effect.
11 - Sprinkle edible glitter generously over frosted cake. Add fondant Pisces symbols or silver star sprinkles if desired.
12 - Refrigerate for 30 minutes to set buttercream design before slicing.

# Expert Advice:

01 -
  • The three-layer vanilla sponge is tender and moist enough to taste amazing but sturdy enough to hold all those gorgeous frosting swirls without crumbling.
  • You get to play with color and design like you're creating edible art, which somehow makes the whole experience feel more fun than stressful.
  • Edible glitter catches the light in ways that make people stop mid-conversation when you bring it to the table.
02 -
  • If your frosting looks too soft when you're swirling, chill it for 10 minutes so it firms up just enough to hold patterns without being so stiff it tears the cake layers.
  • Edible glitter sticks better to frosting that's still slightly wet, so apply it right after you finish decorating rather than waiting until the cake is completely set.
03 -
  • For extra shimmer and luxury, brush a tiny bit of clear vodka or water over the cake just before sprinkling glitter so it really adheres and catches light from every angle.
  • If your frosting is looking too purple or too blue, don't add more of that color—instead, add a tiny bit of the opposite color to balance it out, which is a trick that works for any buttercream color adjustments.
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