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Classic Marble Cake

A timeless combination of chocolate and vanilla swirled together in a buttery, tender cake — simple, elegant, and irresistible.
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Prep Time 20 minutes
Cook Time 55 minutes
Total Time 1 hour 15 minutes
Servings: 10 slices
Course: Dessert, Snack
Cuisine: American, European
Calories: 350
Ingredients Equipment Method Notes

Ingredients
  

  • 2 cups all-purpose flour
  • 2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 1 cup unsalted butter softened
  • 1 1/4 cups granulated sugar
  • 4 large eggs room temperature
  • 2 teaspoons vanilla extract
  • 1/2 cup milk
  • 2 tablespoons cocoa powder
  • 2 tablespoons hot water

Equipment

  • Mixing bowls
  • Loaf pan
  • Electric mixer or whisk
  • Wire rack

Method
 

  1. Preheat oven to 350°F (175°C) and grease a 9x5-inch loaf pan.
  2. Whisk together flour, baking powder, and salt.
  3. Beat butter and sugar until light and fluffy.
  4. Add eggs one at a time, then vanilla.
  5. Mix in dry ingredients alternately with milk until combined.
  6. Mix cocoa and hot water, then stir 1 cup of batter into it to make chocolate batter.
  7. Layer vanilla and chocolate batters in pan and swirl lightly with a knife.
  8. Bake 50–60 minutes or until a toothpick comes out clean.
  9. Cool in pan 10 minutes, then transfer to wire rack to cool completely.
  10. Dust with powdered sugar or drizzle with chocolate glaze to serve.

Notes

Swirl gently for distinct marble patterns. Use high-quality cocoa for rich flavor.