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–+ servings
Moist Chocolate Sheet Cake

Moist Chocolate Sheet Cake That Melts In Your Mouth

This Moist Chocolate Sheet Cake is a rich and indulgent dessert that's sure to impress, made with simple one-bowl preparation.
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Prep Time 15 minutes
Cook Time 35 minutes
Cooling Time 45 minutes
Total Time 1 hour 35 minutes
Servings: 12 slices
Course: Desserts
Cuisine: American
Calories: 320
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Cake
  • 2 cups Granulated Sugar
  • 1.75 cups All-Purpose Flour
  • 0.75 cups Dutch Cocoa Powder
  • 1 teaspoon Baking Soda
  • 1 teaspoon Baking Powder
  • 0.5 teaspoon Salt
  • 2 teaspoons Vanilla Extract
  • 2 large Large Eggs
  • 1 cup Buttermilk can be swapped with a milk-vinegar mix
  • 0.5 cups Neutral Oil or melted butter
  • 0.5 cups Sour Cream or Greek yogurt
  • 1 tablespoon Instant Coffee Powder optional for enhancing chocolate flavor
  • 4 ounces Dark Chocolate chopped
  • 1 cup Boiling Water
For the Frosting
  • 0.5 cups Unsalted Butter melted
  • 0.5 cups Cocoa Powder
  • 2 tablespoons Whole Milk warmed
  • 3-4 cups Powdered Sugar adjust for desired consistency

Equipment

  • 9x13 inch baking pan
  • Mixing bowl
  • Whisk
  • spatula

Method
 

Step‑by‑Step Instructions
  1. Preheat your oven to 350°F (175°C) and prepare a 9x13 inch baking pan lined with parchment paper.
  2. In a mixing bowl, whisk together granulated sugar, all-purpose flour, Dutch cocoa powder, baking soda, baking powder, and salt.
  3. Add large eggs, buttermilk, sour cream, neutral oil, and vanilla extract to the dry ingredients. Stir gently until just combined.
  4. In a separate bowl, combine instant coffee and chopped dark chocolate, then add boiling water and stir until smooth. Fold this mixture into the batter.
  5. Pour the batter into the prepared pan and bake for 30-35 minutes, checking for doneness with a toothpick.
  6. Let the cake cool completely in the pan for 30-45 minutes.
  7. Prepare the frosting by mixing melted butter, cocoa powder, and instant coffee. Add warmed whole milk and stir until smooth.
  8. Sift in powdered sugar and mix until desired consistency is reached. Once cooled, frost the cake evenly and serve.

Nutrition

Serving: 1sliceCalories: 320kcalCarbohydrates: 45gProtein: 4gFat: 15gSaturated Fat: 9gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gCholesterol: 50mgSodium: 180mgPotassium: 220mgFiber: 2gSugar: 28gVitamin A: 300IUCalcium: 50mgIron: 2mg

Notes

Ensure not to overmix the batter for a light texture and use high-quality chocolate for the best flavor.

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