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Shot of marble loaf cake slices.

Marble Loaf Cake

Rich and delish
This marble loaf cake is moist and flavorful and topped with a layer of chocolate ganache. Marble loaf cake is one of our favorite desserts to make because it's so beautiful and so delicious and we love the chocolate and vanilla combination!
5 from 27 votes
Prep Time 15 minutes
Cook Time 50 minutes
Course Dessert
Cuisine American
Servings 12 Slices
Calories 505 kcal

Ingredients
 
 

  • 1 cups Buttermilk
  • ½ cups Sour cream or yogurt
  • 2 teaspoon Vanilla extract
  • ½ cups Vegetable oil
  • 4 Eggs
  • 115 g Butter soft
  • 1 ⅓ cups Granulated sugar
  • 2 ½ cups Flour
  • 2 teaspoon Baking powder
  • ½ teaspoon Salt
  • ¼ cups Cocoa powder

Chocolate ganache:

  • 150 g Dark chocolate
  • 150 g Heavy cream

Instructions
 

  • Preheat an oven to 180c (350f) and prepare a loaf pan with parchment paper.
  • Into a big measuring cup or a small mixing bowl, add the buttermilk, vanilla extract, vegetable oil, sour cream, and mix with a whisk.
  • Then into a medium mixing bowl, add the flour and baking powder. Mix with a whisk until combined.
  • Into a big mixing bowl, add the soft butter, and sugar. Mix with an electric hand mixer until creamy and smooth for about 2 minutes.
  • Add the room temperature eggs and mix until well combined.
  • Then add ½ of the dry mixture and ½ of the wet mixture into the butter mixer and mix it until almost combined.
  • Add the other half of the dry ingredients and the wet mixture until just combined.
  • Divide the mixture in half sift the cocoa powder into one half of the cake mixture and mix until just combined. Don’t overmix.
  • Scoop ¼ cup of the vanilla mixture into the loaf pan, and ¼ cup of the chocolate mixture. Repeat until you run out of cake batter. (as seen in the video)
  • Bake in a 180c (350f) preheated oven for about 40-50 minutes or until a toothpick inserted into the cake comes out clean.

Make the chocolate ganache:

  • Melt dark chocolate and heavy cream in a small to medium mixing bowl in the microwave for about 50 seconds.
  • Let the chocolate and the cream sit for 10 minutes for the chocolate to melt, then mix until the chocolate ganache is smooth and silky.
  • Place the chocolate ganache in the fridge for about 40 minutes or until it hardens and has a frosting-like texture.
  • Frost the cake with the chocolate ganache and make a wave pattern with a spatula.

Notes

Use room temperature ingredients. It is important that you use room-temperature ingredients like eggs and butter. This step ensures that your mixture mixes into a homogenous mixture and bakes perfectly. you don’t want to place cold batter into the oven.
Don’t overmix the batter, you don’t want to develop the gluten in the flour. This step ensures you have a moist cake and not dense and dry cake.
Line your baking pan with parchment paper! This step helps the cake to bake evenly, and it makes sure that your loaf cake will release easily from the pan.
Mesure you flour correctly! When measuring your flour, avoid scooping it with a measuring cup. Instead, stir the flour with a spoon to create as many air pockets as possible, and spoon it into your measuring cup. Finally, level it with a back of a knife.

Nutrition

Calories: 505kcalCarbohydrates: 51gProtein: 7gFat: 31gSaturated Fat: 14gPolyunsaturated Fat: 6gMonounsaturated Fat: 8gTrans Fat: 1gCholesterol: 98mgSodium: 281mgPotassium: 219mgFiber: 3gSugar: 27gVitamin A: 600IUVitamin C: 1mgCalcium: 106mgIron: 3mg
Keyword chocolate marble loaf cake, marble loaf cake
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