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Chocolate Vanilla Marble Loaf Cake

A good marble cake should have distinct vanilla and chocolate flavors in a tender, buttery crumb. This version accomplishes that by creating a single base batter that gets divided and flavored separately. The two batters are then layered and swirled together before baking.
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Prep Time: 20 minutes
Cook Time: 45 minutes
Cooling Time: 30 minutes
Total Time: 1 hour 35 minutes

Ingredients

For the Base Batter

  • 1/2 cup unsalted butter 1 stick, at room temperature
  • 3/4 cup granulated sugar
  • 2 large eggs at room temperature
  • 1 1/2 cups all-purpose flour
  • 1 1/4 teaspoons baking powder
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon Diamond Crystal kosher salt
  • 3 tablespoons whole milk

For the Flavorings

  • 1 1/2 teaspoons vanilla extract
  • 2 tablespoons unsweetened cocoa powder
  • 1 tablespoon whole milk

Instructions

  • Preheat oven to 390F. Grease and flour an 8x4 inch loaf pan.
  • Whisk together flour, baking powder, baking soda, and salt in a medium bowl.
  • Cream butter and sugar until light and fluffy, about 3-4 minutes.
  • Add eggs one at a time, mixing well after each.
  • Add dry ingredients in three parts, alternating with milk, beginning and ending with dry ingredients.
  • Divide batter evenly between two bowls.
  • Stir vanilla extract into first bowl.
  • Mix cocoa powder and 1 tablespoon milk into second bowl.
  • Layer batters alternately in pan, starting with vanilla.
  • Make one lengthwise S-shaped swirl through batter with knife.
  • Bake at 390F for 10 minutes, then reduce to 350F for 30-35 minutes until toothpick comes out clean.
  • Cool in pan for 10 minutes, then remove and cool completely on wire rack.

Notes

Ensure butter and eggs are at room temperature before starting.
Tried this recipe?Leave a comment below & let me know!