If you’re looking for the perfect chocolate cake, this recipe is soft, fluffy, and incredibly moist. Thanks to a combination of buttermilk, sour cream, and hot coffee, every bite is rich and full of deep chocolate flavor.
This is a no-fail, beginner-friendly recipe that’s ideal for birthdays, parties, or everyday dessert cravings.
📝 Ingredients
For the Cake:
- ½ cup sour cream (115g)
- 1 cup buttermilk (236ml)
- 3 large eggs
- 1 ½ cups hot strong coffee (354ml)
- ¾ cup vegetable oil (177ml)
- 1 tbsp vanilla extract
- 3 cups all-purpose flour (360g)
- 2 ⅔ cups granulated sugar (530g)
- ½ cup cocoa powder (50g)
- 1 ½ tsp baking powder
- 1 tbsp baking soda
- ¾ tsp salt
For the Frosting:
- 1 ½ cups unsalted butter (softened)
- ½ cup cocoa powder
- ¾ tsp salt
- 1 lb confectioners’ sugar (sifted)
- ⅓ cup fudge or ganache
👨🍳 Instructions
Step 1: Preheat Oven
Preheat your oven to 350°F (175°C) and grease a 9×13-inch pan.
Step 2: Mix Wet Ingredients
In a large bowl, whisk:
- Sour cream
- Buttermilk
- Eggs
- Oil
- Vanilla
Slowly add hot coffee and mix well.
Step 3: Combine Dry Ingredients
In another bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt.
Step 4: Make Batter
Gradually combine dry ingredients with wet ingredients. Mix until smooth.
(Batter will be thin—this is normal!)
Step 5: Bake
Pour into pan and bake for 30–35 minutes.
Step 6: Cool
Allow cake to cool completely before frosting.
🍫 Chocolate Frosting
- Beat butter until creamy
- Mix in cocoa powder and salt
- Gradually add powdered sugar
- Add fudge or ganache
- Beat until smooth and fluffy
- Spread over cooled cake
💡 Expert Tips
- Hot coffee enhances chocolate flavor (no coffee taste)
- Don’t overmix batter
- Use room temperature ingredients
- Always sift cocoa for smooth texture
❓ FAQ (Frequently Asked Questions)
Can I make this cake without coffee?
Yes, substitute with hot water or milk, but coffee gives a richer flavor.
Why is this cake so moist?
The oil, sour cream, and buttermilk create a soft, tender texture.
Can I make it ahead of time?
Yes! Bake a day ahead and frost before serving.
How do I store it?
Keep covered at room temperature for 2–3 days or refrigerate up to 5 days.
Can I freeze it?
Yes, wrap slices and freeze for up to 2 months.
⭐ Conclusion
This best chocolate sheet cake recipe is rich, moist, and incredibly easy to make. Whether you’re baking for a celebration or just craving chocolate, this cake will never disappoint.
