Atelier Katja

Professional Pastry Chef · South of France

Bake Like a Pastry Chef — From Your Own Kitchen

Professional baking guides that explain not just the how — but the why. Finally get the results you've always wanted.

Choose your recipe

3 eBooks. 3 Iconic Recipes.

Each guide is a complete masterclass — with step-by-step photos, the science of baking, and professional techniques made accessible.

Marble cake recipe ebook

Marble Cake · Classic

The Art of Marble Cake

The fluffy, moist marble cake recipe your family will ask for forever — with a rich soaking syrup and a decadent Rocher chocolate glaze.

  • Perfected marble cake recipe
  • Rich soaking syrup
  • Rocher chocolate glaze
  • 15-day money-back guarantee
Carrot cake recipe ebook

Carrot Cake · Step-by-Step

The Art of Carrot Cake

The best moist carrot cake recipe — with light cream cheese frosting and adorable marzipan carrot decorations that actually work.

  • Perfectly moist carrot cake
  • Light cream cheese frosting
  • Marzipan decorations guide
  • 15-day money-back guarantee
Bakery-style cookie recipe ebook

Cookies · 8 Variations

The Art of Cookies

Master the perfect bakery-style cookie at home — 1 base recipe, 8 delicious variations, and the full science of baking explained.

  • 1 perfected base recipe
  • 8 delicious variations
  • The science of baking
  • 15-day money-back guarantee
Katja Althoff — Professional Pastry Chef

The pastry chef behind the guides

Katja Althoff

I'm originally from Austria and have been living in the South of France for nearly eight years — training with top pastry chefs, earning my professional diploma, and building my own baking business.


What drives me is sharing what most recipes leave out: the why behind every technique. Once you understand how baking really works, you stop following recipes blindly — and start creating confidently.

Work with Katja

Partnership & Collaborations

129K Instagram followers

Atelier Katja reaches a highly engaged community of passionate home bakers across Instagram, TikTok and Pinterest. If you'd like to explore a collaboration — whether for a product launch, a recipe feature, or a long-term partnership — I'd love to hear from you.

  • Sponsored content & recipe development
  • Brand partnerships & product reviews
  • PR gifting & ambassador programs
  • Newsletter & social media features
  • Event appearances & workshops

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Professional Pastry Chef