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Moist Mayonnaise Chocolate Cake on plate

Moist Mayonnaise Chocolate Cake

This Moist Mayonnaise Chocolate Cake is the ultimate secret to rich, bakery-style texture using pantry ingredients. Mayonnaise replaces butter and eggs, delivering a soft, luscious crumb that stays moist for days. Perfect for celebrations, casual desserts, or when you need something chocolatey fast.
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Prep Time 10 minutes
Cook Time 35 minutes
Servings: 4 People
Course: Dessert, DINNER, LUNCH
Cuisine: American
Calories: 280
Ingredients Equipment Method Notes

Ingredients
  

  • 1 cup mayonnaise full-fat
  • 1 cup granulated sugar
  • 2 cups all-purpose flour
  • 1/3 cup unsweetened cocoa powder
  • 1 1/2 tsp baking soda
  • 1 cup cold water
  • 1 tsp vanilla extract
  • 1/4 tsp salt
  • Optional: chocolate chips or frosting of choice for topping

Equipment

  • 9x9-inch baking pan
  • Mixing bowls (2)
  • Whisk
  • Sifter
  • Rubber spatula or spoon
  • Wire rack
  • Measuring cups and spoons
  • Oven
  • Nutrition (Per Serving – Approx. 1 slice out of 9)
  • Calories: 280
  • Fat: 14g
  • Saturated Fat: 3g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Cholesterol: 10mg
  • Sodium: 220mg
  • Carbohydrates: 34g
  • Fiber: 2g
  • Sugar: 22g
  • Protein: 3g

Method
 

  1. Preheat your oven to 180°C (350°F) and grease a 9x9-inch baking pan or line it with parchment paper.
  2. In a large bowl, whisk together the mayonnaise and sugar until smooth and creamy.
  3. Add vanilla extract and cold water; mix well.
  4. In another bowl, sift together the flour, cocoa powder, baking soda, and salt.
  5. Gradually add the dry ingredients to the wet mixture, stirring just until combined—do not overmix.
  6. Pour the batter into the prepared pan and smooth the top.
  7. Bake for 30–35 minutes, or until a toothpick inserted into the center comes out clean.
  8. Let cool in the pan for 10 minutes before transferring to a wire rack.
  9. Top with your favorite chocolate frosting or enjoy as-is for a rich, moist treat.

Notes

Use full-fat mayonnaise for best texture and flavor.
Avoid overmixing the batter to keep the crumb soft.
This cake stays moist for days—store in an airtight container at room temperature or refrigerate.
For added flair, mix in mini chocolate chips or top with cream cheese frosting.
Can be made ahead and frozen—just thaw slices overnight before serving.