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Updated on May 22, 2025 by · This post may contain affiliate links ·

Astronaut Gelatin Flower Cake Tutorial

Skill level: Intermediate

I got a chance to make a space-themed floral cake for one of my best friend's for her daughter's birthday. I love trying to mix together seemingly-unrelated themes and this was a real treat.

In this tutorial, you will learn how to pick, flatten and attach edible flowers to a cake, how to coat the flowers in a translucent gelatin that creates this beautiful effect similar to 3D jelly cakes and topped the cake with a hand-sculpted Astronaut.

56:34 Minutes of Instruction

What You Will Learn

  • How to create an artistic space/floral themed cake
  • Learn how to treat, arrange and add edible flowers to a cake
  • How to create the translucent jelly cake for a double-barrel cake tier
  • Learn how to sculpt an astronaut cake topper

cake decorated with gelatin flowers and astronaut cake topper

Tutorial Chapters

  1. Stacking And Covering The Cake 0:45
  2. Pressing The Flowers 4:43
  3. Making The Chocolate Shells 12:53
  4. Adding The Flowers 14:27
  5. Adding The Acetate 21:44
  6. Making The Gelatin 28:25
  7. Adding The Gelatin 30:03
  8. Making The Head And Body 34:27
  9. Decorating The Astronaut 36:52
  10. Finalizing The Cake 52:44

This is the preview

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About Liz Marek

Liz Marek is a professional cake artist and recipe developer who has been teaching baking and cake decorating since 2008. She founded Artisan Cake Company in Portland, Oregon in 2009 and now runs Sugar Geek Show, where she publishes kitchen-tested recipes, food science explanations, and step-by-step tutorials.

Liz is best known for sculpted and hyperrealistic cakes. She won Netflix's Is It Cake? Holiday 2 in 2025 with a hyperrealistic Santa cake, and has competed on and won Food Network cake competitions. Cake Masters Magazine named her one of the top 10 cake artists in 2017. She is the author of Artisan Cake Company's Visual Guide to Cake Decorating and a graduate of the Oregon Culinary Institute.

Her focus is on explaining not just how a recipe works but why it works, so bakers can troubleshoot instead of guess. Every recipe on this site is tested before it's published.

Liz teaches full-length cake tutorials, including sculpted and hyperrealistic cakes, at Sugar Geek University.