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bath day cake

Bath Day Cake

Create a unique bath day cake with a whimsical bathtub design, fizzy frosting, and edible decorations. Perfect for birthdays, bridal showers, and spa-themed celebrations.
Prep Time 45 minutes
Cook Time 35 minutes
Total Time 1 hour 20 minutes
Course Dessert
Cuisine American
Servings 12
Calories 420 kcal

Equipment

  • Mixing bowls, stand mixer, cake pans, serrated knife, cooling rack, offset spatula, cake turntable, fondant smoother, piping bags, decorating tips, modeling tools, small paintbrush

Ingredients
  

  • 3 cups all-purpose flour
  • 2 cups sugar
  • 4 eggs
  • 1 cup unsalted butter
  • 2 teaspoons baking powder
  • 1 cup milk
  • 2 teaspoons vanilla extract
  • 1 teaspoon citric acid
  • 1 teaspoon baking soda
  • 4 cups powdered sugar
  • 2 tablespoons heavy cream
  • Gel food coloring
  • Fondant decorations
  • Candy melts
  • Agar-agar optional
  • Natural flavor extracts

Instructions
 

  • Preheat oven and prepare cake pans.
  • Mix butter and sugar until light and fluffy.
  • Add eggs one at a time.
  • Alternate adding dry ingredients and milk.
  • Bake until a toothpick comes out clean.
  • Cool completely on a wire rack.
  • Prepare the fizzy frosting by combining butter, powdered sugar, cream, citric acid, and baking soda.
  • Color frosting as desired.
  • Carve the cake into a bathtub shape.
  • Cover and frost the cake.
  • Add fondant decorations, bath bombs, bubbles, and water effects.
  • Serve and enjoy.

Notes

  • Make cake layers one day in advance for easier carving.
  • Use natural extracts instead of alcohol-based flavorings.
  • Agar-agar can replace gelatin for decorative effects.

Nutrition

  • Calories: 420 kcal
  • Carbohydrates: 58 g
  • Protein: 5 g
  • Fat: 18 g
  • Saturated Fat: 10 g
  • Cholesterol: 85 mg
  • Sodium: 180 mg
  • Sugar: 42 g
  • Fiber: 1 g

Storage

Store covered in the refrigerator for up to 3 days. Bring to room temperature before serving.

Suitable For

Birthday Parties, Bridal Showers, Mother's Day, Spa-Themed Events, Girls' Night Celebrations.
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