Name: Chocolate Sheet Cake with Milk Chocolate Ganache Frosting
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Ingredients: 1 cup all-purpose flour; 1 cup granulated sugar; ½ teaspoon baking soda; ½ teaspoon salt; 1 cup whole milk; 8 ounces bittersweet chocolate, finely chopped; ⅓ cup Dutch-processed cocoa powder; ⅓ cup vegetable oil; 4 eggs; 1 teaspoon vanilla extract; 16 ounces milk chocolate, finely chopped; ⅔ cup heavy cream; 16 tablespoons unsalted butter, cut into pieces and softened

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Chocolate Sheet Cake with Milk Chocolate Ganache Frosting is the ultimate dessert that combines rich flavors and a moist texture, making it perfect for any occasion. Whether you’re celebrating a birthday, hosting a dinner party, or simply indulging in a sweet craving, this cake is guaranteed to impress your friends and family. Made with simple ingredients, this cake offers a delightful chocolate experience that is both easy to make and utterly delicious.

Why It’s Crowd-Pleasing

This Chocolate Sheet Cake with Milk Chocolate Ganache Frosting is truly a crowd-pleaser for several reasons. First and foremost, the combination of bittersweet chocolate and Dutch-processed cocoa powder creates a deep, complex chocolate flavor that chocolate lovers adore. The cake’s texture is light and moist, ensuring that each bite melts in your mouth. Additionally, the milk chocolate ganache frosting adds a creamy richness that elevates the dessert to a whole new level. Perfect for sharing, this sheet cake can be easily sliced into generous portions, making it ideal for gatherings.

Ingredient List

1 cup (156.25g) all-purpose flour
1 cup (300g) granulated sugar
½ teaspoon baking soda
½ teaspoon salt
1 cup (244ml) whole milk
8 ounces (226.8g) bittersweet chocolate, finely chopped
⅓ cup (64.5g) Dutch-processed cocoa powder
⅓ cup (145.33ml) vegetable oil
4 eggs
1 teaspoon vanilla extract
16 ounces (453.59g) milk chocolate, finely chopped
⅔ cup (158.67ml) heavy cream
16 tablespoons (16 tablespoons) unsalted butter, cut into 16 pieces and softened

Equipment at a Glance

9×13-inch baking sheet: Perfect for baking the cake.
Mixing bowls: For combining dry and wet ingredients.
Whisk and spatula: Essential tools for mixing.
Double boiler or microwave-safe bowl: To melt the chocolate.
Cooling rack: To cool the cake before frosting.

Cook Chocolate Sheet Cake with Milk Chocolate Ganache Frosting Like This

Step 1: Preheat Your Oven

Preheat your oven to 350°F (175°C). Greasing the baking sheet will ensure an easy release after baking.

Step 2: Combine Dry Ingredients

In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking soda, Dutch-processed cocoa powder, and salt until well combined.

Step 3: Melt the Chocolate

In a double boiler or a microwave-safe bowl, melt the bittersweet chocolate until smooth. Allow it to cool slightly.

Step 4: Mix Wet Ingredients

In another bowl, combine the whole milk, vegetable oil, eggs, and vanilla extract. Whisk until thoroughly mixed. Add the slightly cooled melted chocolate and mix until smooth.

Step 5: Combine and Pour

Gradually add the wet mixture to the dry ingredients, stirring gently until just combined. Be careful not to overmix. Pour the batter into the prepared baking sheet, spreading it evenly.

Step 6: Bake the Cake

Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted in the center comes out clean. Remove from the oven and let it cool in the pan for about 10 minutes before transferring it to a cooling rack.

Step 7: Prepare the Ganache Frosting

In a saucepan, heat the heavy cream until it just begins to simmer. Pour the hot cream over the chopped milk chocolate in a bowl. Let it sit for a few minutes, then stir until smooth. Add the softened butter and mix until fully incorporated.

Step 8: Frost the Cake

Once the cake is completely cooled, pour the milk chocolate ganache over the top, spreading it evenly with a spatula. Allow the ganache to set for a bit before slicing and serving.

Fit It to Your Goals

For a gluten-free version, substitute all-purpose flour with a gluten-free flour blend.
For a lower sugar option, reduce the granulated sugar by half and consider using a sugar substitute.
To make it dairy-free, use almond milk and substitute the butter with a dairy-free alternative.
Add nuts or chocolate chips to the batter for extra texture and flavor.

Missteps & Fixes

Even the best bakers can make mistakes! Here are some common missteps and how to fix them:

If your cake is too dry, it may have been overbaked. Keep a close eye on the baking time next time.
If the ganache is too thick, gently reheat it while stirring to loosen it up before frosting.
If the cake domes in the center, you can level it off with a serrated knife once cooled.
For a cracked surface, make sure to cool the cake gradually and avoid sudden temperature changes.

Storing, Freezing & Reheating

This Chocolate Sheet Cake with Milk Chocolate Ganache Frosting can be stored, frozen, and reheated with ease:

Store leftovers in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week.
The cake can be frozen for up to 3 months. Wrap it tightly in plastic wrap and place it in a freezer-safe container.
To reheat, simply place individual slices in the microwave for 10-15 seconds or enjoy it cold straight from the fridge.

Reader Q&A

Can I use dark chocolate instead of bittersweet chocolate?

Yes, you can use dark chocolate instead of bittersweet chocolate. Just be aware that it may alter the sweetness and flavor slightly, making it richer.

How can I achieve a shinier ganache?

For a shinier ganache, you can add a tablespoon of corn syrup to the heavy cream before heating it. This will give the ganache a beautiful glossy finish.

Is it necessary to cool the cake completely before frosting?

Yes, it is important to let the cake cool completely before frosting it. If you frost it while warm, the ganache may melt and run off the cake.

Can I make this cake in advance?

Absolutely! You can bake the cake a day ahead and store it covered at room temperature. Frost it just before serving for the best results.

The Last Word

This Chocolate Sheet Cake with Milk Chocolate Ganache Frosting is more than just a dessert; it’s a celebration of chocolate in its most delightful form. With its moist texture, rich flavor, and decadent ganache, it’s sure to become a go-to recipe in your baking repertoire. Whether you’re serving it at a party or enjoying a slice with a cup of coffee, it’s an indulgent treat that everyone will love. So preheat that oven, gather your ingredients, and get ready to impress with this fabulous chocolate sheet cake!