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Ultimate White Chocolate Cake

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Ultimate White Chocolate Cake is a rich, tender, and luxurious dessert made with melted white chocolate and topped with a creamy frosting. Perfect for special occasions, it’s a beautiful and indulgent treat for white chocolate lovers.

Ingredients

  • 2 1/2 cups all-purpose flour
  • 2 1/2 tsp baking powder
  • 1/2 tsp salt
  • 1 cup unsalted butter (softened)
  • 1 3/4 cups granulated sugar
  • 4 large eggs
  • 2 tsp vanilla extract
  • 1 cup whole milk or buttermilk
  • 6 oz white chocolate (melted and cooled slightly)
  • Optional: 1/2 cup sour cream or Greek yogurt
  • Optional: white chocolate chips or curls for garnish

For frosting (choose one):

  • White chocolate buttercream: 1 cup butter, 6 oz white chocolate (melted), 3–4 cups powdered sugar, 2–4 tbsp heavy cream
  • White chocolate ganache: 8 oz white chocolate, 1/2 cup heavy cream

Instructions

  1. Preheat oven to 350°F (175°C). Grease and line two or three 8-inch round cake pans with parchment paper.
  2. Melt white chocolate gently in a double boiler or microwave, stirring until smooth. Let cool slightly.
  3. In a bowl, whisk together flour, baking powder, and salt.
  4. In a large bowl, beat butter and sugar until light and fluffy. Add eggs one at a time, then mix in vanilla.
  5. Mix in the melted white chocolate, then alternate adding the dry ingredients and milk. Stir just until combined. Add sour cream or yogurt if using.
  6. Divide the batter evenly into the prepared pans. Bake for 28–32 minutes or until a toothpick inserted into the center comes out clean.
  7. Cool completely before removing from pans and frosting.
  8. For buttercream: Beat butter and melted white chocolate. Gradually add powdered sugar and cream until light and fluffy.
  9. For ganache: Heat cream, pour over chopped white chocolate, let sit, then stir until smooth. Cool before spreading.
  10. Assemble the cake with layers of frosting in between, then frost the top and sides. Decorate as desired.

Notes

  • Use real white chocolate made with cocoa butter for best results.
  • Do not overheat white chocolate—melt it gently to avoid seizing.
  • Adding sour cream or yogurt helps maintain a moist texture.
  • For added elegance, top with white chocolate curls or fresh berries.
  • Bring the cake to room temperature before serving for the best flavor and texture.

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