Chocolate Sheet Cake

A Sweet Treat for Every Occasion
There’s something truly delightful about a homemade Chocolate Sheet Cake.
This classic dessert is not only simple to prepare but also incredibly satisfying, with its rich chocolate flavor and soft, moist texture.
Whether it’s for a family gathering, birthday party, or just because you feel like indulging, this cake makes it easy to share a slice of happiness.
Let’s dive into this easy-to-follow recipe that’s sure to become a family favorite!
Recipe Information
- Prep Time: 15 minutes
- Cook Time: 30-35 minutes
- Total Time: 45-50 minutes
- Servings: 24
- Difficulty Level: Easy
Nutrition Information
- Calories per serving: 290
- Protein: 4g
- Carbohydrates: 41g
- Fat: 12g
- Fiber: 1g
- Sugar: 27g
- Sodium: 220mg
Why I Love This Chocolate Sheet Cake
This Chocolate Sheet Cake holds a special place in my heart because it brings back memories of family gatherings and celebrations.
There’s just something magical about the aroma of baking chocolate wafting through the house.
The best part? It’s so easy to make! You mix everything in one bowl, pour it into a sheet pan, and you’re good to go. It’s perfect for those last-minute dessert cravings or when you’re hosting a crowd.
Everyone loves it, and the joy you see on their faces makes all the mixing worth it!
Ingredients
1 ¾ cups all-purpose flour
2 cups granulated sugar
¾ cup unsweetened cocoa powder
1 ½ teaspoons baking soda
1 teaspoon baking powder
1 teaspoon salt
2 large eggs
1 cup whole milk
½ cup vegetable oil
2 teaspoons vanilla extract
1 cup boiling water
How to Make Chocolate Sheet Cake
Step 1: Preheat and Prepare
Preheat your oven to 350°F (175°C). Grease and flour a 13×18 inch sheet pan to ensure your cake releases easily after baking.
Step 2: Combine Dry Ingredients
In a large bowl, combine the all-purpose flour, granulated sugar, unsweetened cocoa powder, baking soda, baking powder, and salt. Mixing these dry ingredients first helps to evenly distribute the leavening agents and cocoa.


Step 3: Mix in Wet Ingredients
Add the eggs, whole milk, vegetable oil, and vanilla extract to the dry ingredients. Mix everything together until it’s well combined and smooth. The batter will be thick but creamy!


Step 4: Incorporate Boiling Water
Carefully stir in the boiling water. This step is crucial as it helps the cocoa powder bloom and gives the cake that moist texture we’re all looking for. Don’t worry if the batter is thin; that’s just right.
Step 5: Bake
Pour the batter into the prepared sheet pan, spreading it evenly. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean. Your kitchen will smell heavenly!


Step 6: Cool and Frost
Allow the cake to cool in the pan. Once it’s completely cool, you can frost it with your favorite chocolate frosting or enjoy it plain with a dusting of powdered sugar.
Tips & Variations
- Frosting Options: Consider making a quick chocolate buttercream or ganache to top your cake for an extra layer of indulgence.
- Serving Suggestions: Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream for an elevated dessert experience.
- Dietary Swaps: You can make this cake gluten-free by using a 1:1 gluten-free flour blend. For a lower sugar option, substitute granulated sugar with a sugar alternative that measures like sugar.
- Storing Leftovers: Keep the cake covered at room temperature for up to 3 days, or refrigerate for a week.
Delicious Variations
- Classic Vanilla Sheet Cake: A light and airy vanilla version perfect for any occasion.
- Carrot Sheet Cake: Moist and spiced with cinnamon, loaded with grated carrots and nuts.
- Lemon Sheet Cake: Bright and refreshing, topped with a tangy lemon glaze.
- Red Velvet Sheet Cake: A festive twist on traditional sheet cake with cream cheese frosting.
Serving Suggestions for Chocolate Sheet Cake
This Chocolate Sheet Cake is best served at room temperature or slightly warm. For dessert time, pair it with a glass of cold milk or a cup of coffee.
You can also complement it with fresh berries, which add a lovely contrast to the richness of the chocolate.
For a complete meal, consider serving it alongside a simple salad for a sweet finish!
Storage and Leftovers
Store any leftover chocolate sheet cake in an airtight container at room temperature for up to 3 days.
To keep it fresh longer, you can refrigerate it for about a week. If you’re looking to store it for an extended period, wrap the cake tightly in plastic wrap and freeze it; it can last up to 3 months in the freezer.
Just make sure to let it thaw before enjoying!
Helpful Questions
Can I use a different type of flour?
Yes! You can substitute all-purpose flour with a gluten-free flour blend to make this cake gluten-free.What can I use instead of vegetable oil?
You can replace vegetable oil with melted coconut oil or unsweetened applesauce for a healthier twist.How do I know when the cake is done?
Insert a toothpick into the center of the cake. If it comes out clean or with a few moist crumbs, it’s done!Can I make this as cupcakes instead?
Absolutely! This recipe will yield about 24 cupcakes. Bake at the same temperature for about 18-20 minutes.What’s the best way to frost the cake?
Wait until the cake is completely cool, then spread your frosting evenly with a spatula or pipe it on for a fancier look. Enjoy!

Chocolate Sheet Cake
- Total Time: 50 minutes
- Yield: 24 servings 1x
- Diet: Vegetarian
Description
A classic homemade Chocolate Sheet Cake that’s rich in flavor and easy to prepare, perfect for any occasion.
Ingredients
- 1 ¾ cups all-purpose flour
- 2 cups granulated sugar
- ¾ cup unsweetened cocoa powder
- 1 ½ teaspoons baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
- 2 large eggs
- 1 cup whole milk
- ½ cup vegetable oil
- 2 teaspoons vanilla extract
- 1 cup boiling water
Instructions
- Preheat your oven to 350°F (175°C) and grease and flour a 13×18 inch sheet pan.
- In a large bowl, combine the all-purpose flour, sugar, cocoa powder, baking soda, baking powder, and salt.
- Add the eggs, whole milk, vegetable oil, and vanilla extract to the dry ingredients. Mix until smooth.
- Carefully stir in the boiling water until combined.
- Pour the batter into the prepared sheet pan and bake for 30-35 minutes, until a toothpick comes out clean.
- Allow to cool in the pan before frosting with your favorite chocolate frosting or dusting with powdered sugar.
Notes
For added indulgence, try frosting with chocolate buttercream or serving with ice cream.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 290
- Sugar: 27g
- Sodium: 220mg
- Fat: 12g
- Saturated Fat: 3.5g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 41g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 30mg
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