This German Chocolate Sheet Cake is pure decadence without the fuss! The rich chocolate cake topped with that signature coconut-pecan frosting delivers all the classic flavors in a convenient sheet pan format. Perfect for feeding a crowd, this cake brings together the deep chocolate flavor and sweet, nutty frosting that German chocolate cake lovers crave – all in about an hour from start to finish!
Why You’ll Love This Recipe
- Crowd Pleaser: This sheet cake format makes it perfect for parties, potlucks, or large family gatherings – easily serves 24 people!
- Easier Than Layer Cake: All the flavor of traditional German chocolate cake without the stress of stacking and frosting multiple layers.
- Perfect Balance: The moist, rich chocolate cake pairs beautifully with the sweet, nutty coconut-pecan frosting for a dessert that’s not too sweet but absolutely satisfying.
- Uncomplicated Process: Simple ingredients and straightforward steps make this an achievable baking project even for those who don’t consider themselves expert bakers.
Ingredients You’ll Need
For the Cake:
- All-purpose flour: The foundation of our cake, providing structure while keeping it tender.
- Granulated sugar: Sweetens the cake while helping create that perfect crumb texture.
- Unsweetened cocoa powder: Brings rich chocolate flavor without added sweetness.
- Baking soda and baking powder: The dynamic duo that gives the cake its perfect rise.
- Salt: Enhances all the flavors and balances the sweetness.
- Eggs: Provide structure, richness, and help bind everything together.
- Buttermilk: Adds moisture and tanginess that complements the chocolate beautifully.
- Warm water: Helps bloom the cocoa powder, intensifying the chocolate flavor.
- Vegetable oil: Creates moisture that stays intact even after baking, keeping the cake tender for days.
- Vanilla extract: Adds depth to the chocolate flavor.
For the Coconut Pecan Frosting:
- Salted butter: Forms the rich base of our frosting with a touch of salt to balance sweetness.
- Granulated and brown sugars: Combine to create complex sweetness and caramel notes.
- Egg yolks: Thicken the frosting while adding richness and a silky texture.
- Evaporated milk: Creates that distinctive custard-like base that makes this frosting special.
- Vanilla extract: Enhances the warm, sweet flavors of the frosting.
- Unsweetened coconut flakes: Adds texture and tropical flavor.
- Chopped pecans: Brings nutty crunch and the signature German chocolate cake element.
Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.
Variations
Want to put your own spin on this classic? Here are some delicious ways to make it your own:
- Dark Chocolate Lover’s Version: Use dark cocoa powder instead of regular unsweetened cocoa powder for an even deeper chocolate flavor.
- Toasted Coconut Upgrade: Toast the coconut before adding it to the frosting for enhanced nutty flavor and extra texture.
- Bourbon Infusion: Add a tablespoon of bourbon to the frosting for a sophisticated adult twist.
- Chocolate Drizzle: After frosting the cake, drizzle some melted semi-sweet chocolate over the top for an extra chocolate hit.
- Gluten-Free Option: Substitute a reliable gluten-free flour blend (with xanthan gum) for the all-purpose flour.
How to Make German Chocolate Sheet Cake
Step 1: Prepare the Cake
Preheat your oven to 350°F. Thoroughly grease a 13×18-inch baking sheet with butter or cooking spray, then line the bottom with parchment paper. This two-step process ensures your cake won’t stick. In a large mixing bowl, combine all the dry ingredients: flour, sugar, cocoa powder, baking soda, baking powder, and salt. Whisk them together until they’re evenly distributed.
Step 2: Mix the Batter
Add the eggs, buttermilk, warm water, vegetable oil, and vanilla to your dry ingredients. Using a hand mixer, beat everything on medium speed until you have a smooth, lump-free batter. The consistency should be somewhat thin but completely uniform. Pour this silky batter onto your prepared baking sheet, spreading it evenly to the corners.
Step 3: Bake the Cake
Slide your baking sheet into the preheated oven and bake for 30-35 minutes. You’ll know it’s done when a toothpick inserted into the center comes out clean or with just a few moist crumbs. The cake should spring back slightly when gently pressed. Once baked, place the pan on a wire rack and allow the cake to cool completely in the pan.
Step 4: Prepare the Frosting
While the cake cools, make the signature coconut-pecan frosting. In a medium saucepan, melt the butter over medium heat. Once melted, whisk in both sugars until they dissolve and the mixture looks uniform. Add the egg yolks, evaporated milk, and vanilla, whisking constantly to prevent the eggs from scrambling.
Step 5: Cook the Frosting
Cook this mixture over medium heat for 12-14 minutes, stirring frequently. This is the most critical step – you’re creating a custard base that will thicken as it cooks. You’ll know it’s ready when the mixture coats the back of a spoon and if you run your finger through it, the line stays clear. Remove from heat once thickened.
Step 6: Finish and Frost
Stir the coconut flakes and chopped pecans into the hot frosting mixture. Set it aside to cool completely – this is important as it will continue to thicken as it cools. Once both the cake and frosting have cooled, spread the frosting evenly over the cake, making sure to cover it all the way to the edges.
Pro Tips for Making the Recipe
- Bloom the Cocoa: The warm water in this recipe isn’t just for moisture – it “blooms” the cocoa powder, intensifying the chocolate flavor. Make sure your water is warm (not hot or boiling).
- Room Temperature Ingredients: Bring eggs and buttermilk to room temperature before mixing for a smoother batter.
- Don’t Overmix: Once you add the flour, mix just until combined to avoid a tough cake.
- Test For Doneness Early: Start checking your cake about 5 minutes before the suggested baking time, as all ovens vary.
- Patience With The Frosting: The frosting will seem thin when hot but thickens considerably as it cools. Don’t rush this process or you’ll end up with runny frosting.
- Toast For More Flavor: For an even more flavorful frosting, lightly toast the pecans and coconut before adding them to the mixture.
How to Serve
German Chocolate Sheet Cake shines on its own, but here are some serving suggestions to make it even more special:
Perfect Pairings:
- A scoop of vanilla ice cream alongside a warm slice creates a delightful temperature contrast.
- Fresh berries, particularly raspberries or strawberries, provide a tart counterpoint to the sweet cake.
- A dollop of freshly whipped cream adds lightness to this rich dessert.
- A cup of strong coffee or espresso balances the sweetness and enhances the chocolate flavors.
Presentation Ideas:
- For special occasions, dust the edges with a little cocoa powder or powdered sugar for an elegant look.
- Cut into perfect squares and serve on plates with a drizzle of chocolate sauce for a restaurant-worthy presentation.
- For casual gatherings, serve right from the pan for that homey, comfort-food appeal.
Make Ahead and Storage
Storing Leftovers
This cake actually improves after a day, as the flavors meld together beautifully. Store covered at room temperature for up to 3 days. The frosting acts as a natural preservative, helping keep the cake moist.
Freezing
You can freeze the unfrosted cake for up to 3 months. Wrap it tightly in plastic wrap, then aluminum foil. The frosting doesn’t freeze particularly well due to its texture, so it’s best to make that fresh before serving.
You can also freeze individual slices of frosted cake for up to 1 month. Place slices on a baking sheet, freeze until solid, then wrap individually in plastic wrap and store in freezer bags.
Reheating
For the best flavor and texture, allow frozen cake to thaw overnight in the refrigerator. For a warm slice, microwave individual portions for 15-20 seconds – the warmth makes the frosting gloriously gooey again!
FAQs
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What makes German chocolate cake “German”?
Despite the name, German chocolate cake isn’t from Germany! It’s actually named after Samuel German, an American who developed a type of dark baking chocolate for Baker’s Chocolate Company in the 1850s. The distinctive cake recipe using this chocolate was published in 1957 and became wildly popular.
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Can I make this cake ahead of time for a party?
Absolutely! This cake actually tastes even better a day after baking as the flavors have time to meld. You can make it up to two days in advance – just cover it well and store at room temperature. The frosting acts as a moisture-sealer for the cake.
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I don’t have buttermilk. Is there a substitute?
Yes! For a quick substitute, add 1 tablespoon of white vinegar or lemon juice to a measuring cup, then add enough milk to make 1 cup total. Let it sit for 5 minutes before using. The acidity is important for the cake’s texture and rise.
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My frosting seems runny. What did I do wrong?
Patience is key with this frosting! It will seem quite runny when hot but thickens considerably as it cools. Make sure you’re cooking it long enough initially – it should coat the back of a spoon. If it’s still too thin after cooling, you can return it to low heat and cook it a bit longer, or add a few more tablespoons of coconut.
Final Thoughts
This German Chocolate Sheet Cake brings together rich chocolate cake and that irresistible coconut-pecan frosting in a format that’s perfect for sharing. It’s the ideal balance of ease and indulgence – impressive enough for special occasions but simple enough for a weeknight treat when chocolate cravings strike. The next time you need to feed a crowd or just want to treat yourself to something special, give this recipe a try. I promise the combination of moist chocolate cake with that sweet, nutty frosting will have everyone asking for the recipe!
PrintGerman Chocolate Sheet Cake Recipe
- Prep Time: 30 minutes
- Cook Time: 35 minutes
- Total Time: 1 hour 5 minutes
- Yield: 24 slices 1x
- Category: Desserts
- Method: Baking
- Cuisine: American
Description
This delicious and moist German Chocolate Sheet Cake is perfect for any occasion. With a rich chocolate base and a decadent coconut pecan frosting, it strikes the perfect balance between sweetness and texture. Whether you’re serving it at a party or enjoying a slice with your favorite coffee, this cake will leave everyone asking for seconds!
Ingredients
Cake
- 2 cups all-purpose flour
- 2 cups granulated sugar
- 1/2 cup unsweetened cocoa powder
- 2 teaspoons baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
- 2 large eggs
- 1 cup buttermilk
- 1 cup warm water (100-110°F)
- 1/3 cup vegetable oil
- 1 1/2 teaspoons vanilla extract
Coconut Pecan Frosting
- 1/2 cup salted butter
- 1/2 cup granulated sugar
- 1/2 cup brown sugar
- 3 large egg yolks
- 1 (12-ounce) can evaporated milk
- 2 teaspoons vanilla extract
- 1 1/2 cups unsweetened coconut flakes
- 1 cup chopped pecans
Instructions
- Preheat the oven and prepare the baking sheet
Preheat the oven to 350°F (175°C). Grease a 13×18-inch baking sheet with butter or nonstick cooking spray and line the bottom with parchment paper. - Combine the dry ingredients
In a large mixing bowl, stir together 2 cups of all-purpose flour, 2 cups of granulated sugar, 1/2 cup of unsweetened cocoa powder, 2 teaspoons of baking soda, 1 teaspoon of baking powder, and 1 teaspoon of salt. Mix until well combined. - Incorporate the wet ingredients
Add 2 large eggs, 1 cup of buttermilk, 1 cup of warm water, 1/3 cup of vegetable oil, and 1 1/2 teaspoons of vanilla extract to the bowl with the dry ingredients. Use a hand mixer to beat on medium speed until the batter is smooth and lump-free. - Bake the cake
Pour the batter evenly into the prepared baking sheet. Bake for 30–35 minutes or until a toothpick inserted into the cake’s center comes out clean. Allow the cake to cool completely in the pan. - Prepare the coconut pecan frosting
In a medium saucepan, melt 1/2 cup of salted butter over medium heat. Whisk in 1/2 cup of granulated sugar and 1/2 cup of brown sugar until well combined. Gradually whisk in 3 large egg yolks, 1 can of evaporated milk, and 2 teaspoons of vanilla extract. Cook the mixture over medium heat for 12–14 minutes, stirring frequently, until it thickens and coats the back of a spoon. - Assemble the frosting
Remove the saucepan from heat and stir in 1 1/2 cups of unsweetened coconut flakes and 1 cup of chopped pecans. Allow the frosting to cool completely before spreading it evenly over the cooled cake.
Notes
- For an even richer cake, use hot coffee instead of warm water in the batter. It enhances the chocolate flavor without adding noticeable coffee taste.
- To toast the pecans and coconut, place them in a single layer on a baking sheet and bake at 350°F for 5–7 minutes, stirring occasionally, until fragrant.
- If you don’t have buttermilk, you can make a substitution by combining 1 tablespoon of vinegar or lemon juice with 1 cup of milk. Let it sit for 5 minutes before using.
Nutrition
- Serving Size: 1 slice
- Calories: 270kcal
- Sugar: 21g
- Sodium: 190mg
- Fat: 13g
- Saturated Fat: 6g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 2g
- Protein: 4g
- Cholesterol: 45mg