How to Create a Stunning Galaxy-Themed Birthday Cake

Birthdays are the perfect opportunity to make a creative statement with your cake, and nothing captures the imagination quite like a galaxy-themed design. This out-of-this-world cake, iced in buttercream with an airbrushed galaxy effect, features metallic spheres, sugar stars, and a personalized topper. Here’s how we created this stunning cake at All Things Cake and tips for recreating it at home or for your bakery.

Step 1: Start with a Perfectly Iced Base

Every great cake starts with a smooth foundation. For this galaxy-themed cake, we used our signature buttercream icing. Here’s how to achieve the perfect base:

• Crumb Coat: Begin with a thin layer of buttercream to seal in crumbs.
• Final Coat: Apply a smooth, even layer of buttercream as the base color.
• Chill: Place the cake in the fridge to set the buttercream before airbrushing.

Step 2: Create the Galaxy Effect

The galaxy effect is where the magic happens! We used an airbrush to layer vibrant colors and black over the white buttercream. Here’s how:

1. Choose Your Colors: Use shades of purple, blue, and pink to mimic a galaxy.
2. Layer the Colors: Lightly spray each color in random spots, blending slightly to create depth.
3. Add Stars: Use white food coloring to flick tiny dots across the cake, mimicking stars in the galaxy.

Step 3: Decorate with Metallic Accents

The metallic spheres on this cake add dimension and a futuristic vibe. To create these:

• Use edible metallic paint to coat fondant or chocolate spheres in gold and silver.
• Arrange the spheres in clusters for a 3D effect.
• Secure them to the cake with a dab of buttercream or melted chocolate. You can also skewer them ahead of time with floral wire and insert them into the cake.

Step 4: Add Sugar Stars and Custom Details

To complete the celestial look:

• Sugar Stars: Use small star-shaped cutters to create white fondant stars or purchase pre-made sugar stars.
• Astronaut Design: We included an edible astronaut image for a playful touch, secured with buttercream.
• Personalized Topper: A custom topper plaque with the birthday child’s name and age ties the design together.

Step 5: Final Touches

The final touches bring the whole design together:

• Highlight with Luster Dust: Add a subtle shimmer using edible luster dust for a starlit effect.
• Secure the Board: Place the cake on a sturdy, decorated cake board to match the theme.

Why Choose All Things Cake for Your Galaxy Cake?

At All Things Cake, we specialize in creating custom cakes that are as delicious as they are beautiful. Our galaxy-themed cake is a testament to the skill of our decorators and the quality of our fresh, never frozen ingredients. Whether it’s a child’s birthday or an adult celebration, we’re here to bring your vision to life.

Ready to order your custom galaxy cake? Contact us today to make your next celebration truly stellar!