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A classy watercolour ombre baby shower cake with delicate pastel gradients.

Classy Watercolour Ombre Baby Shower Cake

This elegant cake features soft, watercolor-like ombre frosting, perfect for a baby shower or any special celebration. Its delicate colors and delicious flavor make it a beautiful centerpiece.
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Prep Time 1 hour 15 minutes
Cook Time 28 minutes
Total Time 3 hours 30 minutes
Servings: 12 slices
Course: Cake, Dessert
Cuisine: American
Calories: 550
Ingredients Method Notes

Ingredients
  

For the Cake
  • 2.5 cups all-purpose flour
  • 2 cups granulated sugar
  • 1 tablespoon baking powder
  • 0.5 teaspoon salt
  • 1 cup unsalted butter softened
  • 4 large eggs
  • 1 cup whole milk
  • 2 teaspoons vanilla extract
For the American Buttercream
  • 1 cup unsalted butter softened
  • 7 cups powdered sugar sifted (6-8 cups)
  • 0.25 cup whole milk or heavy cream
  • 2 teaspoons vanilla extract
  • 1 pinch salt
  • Gel food coloring e.g., pastel blue, pink, lavender, or green

Method
 

  1. Preheat oven to 350°F (175°C). Grease and flour two 8-inch round cake pans or three 6-inch round pans. In a large bowl, whisk together flour, granulated sugar, baking powder, and ½ teaspoon salt.
  2. In a separate large bowl, cream 1 cup softened butter until light and fluffy. Beat in eggs one at a time, then mix in 1 cup whole milk and 2 teaspoons vanilla extract.
  3. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Do not overmix.
  4. Divide batter evenly among prepared pans. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Let cool in pans for 10 minutes, then invert onto a wire rack to cool completely.
  5. For the American Buttercream: In a large bowl, beat 1 cup softened butter until creamy. Gradually add sifted powdered sugar, alternating with ¼ cup milk/cream and 2 teaspoons vanilla extract, beating until light and fluffy. Add a pinch of salt. If too thick, add more milk; if too thin, add more powdered sugar.
  6. Divide the buttercream into 3-4 bowls. Leave one bowl white. Tint the remaining bowls with increasing amounts of your chosen gel food coloring to create an ombre effect (e.g., very light, medium, darker shade).
  7. Level cooled cake layers if necessary. Place one cake layer on a serving plate or cake stand. Spread a thin layer of white or lightest colored buttercream on top. Repeat with remaining layers. Apply a thin, even layer of white buttercream all over the cake (crumb coat) to seal in crumbs. Chill for 15-20 minutes.
  8. Starting from the bottom, apply the darkest colored buttercream in a band around the bottom of the cake. Above that, apply the medium shade, then the lightest shade, and finally the white buttercream on top. Ensure the bands slightly overlap.
  9. Using a clean, warm offset spatula or bench scraper, gently smooth the buttercream around the cake, rotating it slowly. Lightly drag the spatula through the overlapping colors to blend them, creating a soft, watercolor-like transition. Clean your spatula frequently for the best effect.
  10. Chill the cake for at least 30 minutes to set the frosting. Decorate with optional sprinkles or a baby shower cake topper if desired. Serve at room temperature.

Notes

For best results, ensure all ingredients are at room temperature before mixing. Chilling the cake layers before frosting makes them easier to handle.