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Magical Purple Ombre Birthday Cake: Easy Homemade Recipe

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A stunning purple ombre birthday cake with a moist vanilla base and creamy buttercream frosting. This showstopper is deceptively simple to make and perfect for any celebration.

Ingredients

Scale
  • 1 cup (2 sticks) unsalted butter, softened
  • 2 cups granulated sugar
  • 4 large eggs, at room temperature
  • 2 teaspoons vanilla extract
  • 3 cups all-purpose flour
  • 1 tablespoon baking powder
  • 1/2 teaspoon salt
  • 1 cup buttermilk
  • 1/4 cup vegetable oil
  • Purple gel food coloring (violet, lavender, deep purple)
  • 1 1/2 cups (3 sticks) unsalted butter, softened (for frosting)
  • 5 cups powdered sugar, sifted
  • 3–4 tablespoons heavy cream
  • 2 teaspoons vanilla extract (for frosting)
  • Pinch of salt (for frosting)
  • Purple gel food coloring (for frosting)

Instructions

  1. Preheat oven to 350°F (175°C). Grease three 8-inch round cake pans, line bottoms with parchment paper, and dust sides with flour.
  2. In a stand mixer with paddle attachment, beat softened butter and granulated sugar on medium speed for 3-4 minutes until light and fluffy.
  3. Add eggs one at a time, beating well after each. Add vanilla extract and mix until combined.
  4. In a separate bowl, whisk together flour, baking powder, and salt.
  5. With mixer on low, add one-third of flour mixture, mixing until just combined. Add half of buttermilk and vegetable oil, mixing again. Repeat with remaining flour and buttermilk, ending with flour. Do not overmix.
  6. Divide batter evenly into three bowls. Tint each bowl a different shade of purple using gel food coloring: light lavender, medium violet, and deep purple.
  7. Pour each colored batter into prepared pans and spread evenly. Bake for 22-28 minutes, until a toothpick inserted in center comes out clean. Cool in pans for 10 minutes, then turn out onto cooling rack and remove parchment. Cool completely.
  8. For buttercream: Beat softened butter on medium speed for 5 minutes until pale and fluffy. Gradually add sifted powdered sugar, one cup at a time, on low speed. Add heavy cream, vanilla extract, and pinch of salt. Beat on medium-high for 2-3 minutes until light and airy.
  9. Assemble cake: Place darkest purple layer on serving plate. Spread a generous layer of buttercream on top. Repeat with medium purple layer, then lightest lavender layer on top.
  10. Apply a thin crumb coat of frosting over entire cake. Refrigerate for 20-30 minutes to set. Then apply final layer of frosting, smoothing with offset spatula and bench scraper for clean edges.

Notes

Use gel food coloring for best results; liquid coloring may thin batter. Weigh batter for even layers. Chill layers before assembling for easier handling. Do a proper crumb coat for a professional finish.

Nutrition

Keywords: purple ombre cake, birthday cake, homemade cake, vanilla cake, buttercream frosting, layered cake, celebration cake

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