This super easy, delicious, moist tray bake chocolate cake consists of a soft chocolate sponge that is topped with a whipped milk chocolate ganache.
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This particular chocolate cake recipe is a variation of my Vanilla Tray Bake. Over the years I have experimented with turning my Vanilla cake into a chocolate one.
These experimentations included simply adding cocoa powder, to bloom the cocoa powder - of which I decided for simplicity's sake that the cocoa powder does not need to be bloomed. However, I am a big believer that a few teaspoons of instant coffee or espresso coffee go a long way in creating a great chocolate cake.
I also decide on a whipped chocolate ganache over a chocolate buttercream to take an old-school chocolate traybake and kick it up a notch.
Why You Will Love this Chocolate Sheet Cake with Ganache Frosting
- This cake is super easy to make!
- It is a moist chocolate cake.
- This tray bake or sheet cake is great for a gathering or get-together.
- Top this chocolate tray bake with a few Easter eggs and you have a fantastic chocolate Easter Cake.
- This simple yet elegant tray bake makes for a great birthday cake. For a more festive feel, choose sprinkles that will coordinate with your particular theme.
Ingredients
Here are some notes on the ingredients used in this recipe. Please see the recipe card for quantities.
- Cocoa powder: Dutch-processed cocoa powder.
- All-purpose, plain, standard grade or cake flour (South Africa)
- Butter
- Eggs
- Milk
- Granulated coffee or espresso powder
- Baking Powder
- Eggs
- Cream - heavy, double or whipping cream for the ganache
- A mix of milk and dark chocolate
Plain/all-purpose/standard grade flour can be substituted on a 1 to 1 basis for recipes that have ½ to 1 teaspoon of baking powder per 125 grams/1 cup of flour. If the recipe requires more than 1 teaspoon per cup, simply add the extra baking powder to the recipe to make up the difference. Self-raising/rising flours may already contain salt so this may need to be omitted from the recipe as well.
Test the freshness of your baking powder or baking soda (bicarbonate of soda or bread soda) by placing a small amount in some boiling water. If it bubbles and fizzes, it's good to use!
Salt is a crucial ingredient in all baked goods. I use table salt in all my recipes. One teaspoon of table salt equals 1.5 teaspoons of Morton Kosher Salt equals 2 teaspoons of Diamond Crystal.
Room Temperature Ingredients
Use room-temperature ingredients! Using room temperature ingredients ensures that ingredients in the batter or dough will incorporate easier. Take note that room temperature refers to around 20°C/68F.
- To bring eggs to room temperature quickly, place them into warm water for about 10 to 15 minutes.
- To bring butter to room temperature quickly, cut the butter into cubes and zap in the microwave at 20% power in 10-second intervals. Or place the cubes in a bowl over warm water (such as with a double boiler) over low heat for 1 minute!
- Milk, buttermilk, and cream can be brought to room temperature by zapping in the microwave at 20% power in 10-second intervals. Or on low heat for a minute or two swirling every 10-15 seconds.
Weighing & Measuring Ingredients
Weighing ingredients with a kitchen scale is more accurate than using measuring cups. All my recipes are developed and tested using grams only.
However, I have activated the metric-to-cup conversions. Simply click on "cups" or "metric" for your preferred measurements. For these conversions, cups are equal to 240 millilitres/8 fluid ounces, tablespoons are 15 milliliters and teaspoons are 5mL.
Step-by-Step Instructions
Step 1 - Preheat the oven the 170°C/340F. Grease and line a 9"x13" (23cm x 33cm) rectangular cake tin.
Step 2 - Toss the vanilla extract and granulated instant coffee or espresso powder into the milk. The coffee will dissolve into the milk, making it easier to mix in with the rest of the ingredients.
Step 3 - Whisk together the flour, baking powder and salt. Set aside. Melt the butter and allow it to cool while moving on to the next step.
Step 4 - In a large mixing bowl beat the eggs and sugar until light and fluffy and have doubled in volume. About 3-5 minutes using an electric hand mixer/stand mixer.
Step 5 - Pour the butter slowly down the side of the bowl with the mixer running. Mix until well combined. Similarly, add in the milk and mix through.
Step 6 - Sieve the cocoa powder over the egg mixture. Add in half the flour and whisk together until just combined. Add in the rest of the flour and mix until just combined.
Step 7 - Pour the batter into the prepared baking tin. Smooth to the edges. Bake for 25 to 30 minutes or until a cake tester comes out clean from the centre of the cake. Cool in the tin for 10 minutes before turning out onto a cooling rack to completely cool.
Step 8 - While the cake is baking and cooling, heat up the cream either over medium heat in a small saucepan or in a heatproof bowl in the microwave.
Step 9 - Once the cream is hot and bubbling around the edges, toss in the blocks of chocolate. Allow the mixture to sit for 5 minutes, then whisk the mixture together until the ganache is smooth and creamy.
Step 10 - Allow the ganache to cool in the fridge, stirring it every 15 minutes to check on how much the ganache has set.
Step 11 - Once the ganache is set, meaning the ganache is firm yet still slightly stirrable. Beat the ganache either in a stand mixer or with an electric handheld mixture until the ganache has lightened in colour and is a bit fluffy.
Step 12 - Plop the frosting/icing over the top of the completely cooled cake, smooth until mostly even using an offset spatula or the back of a dessert spoon. Then create swirly patterns on the top if desired.
Making Chocolate Cupcakes
This cake recipe also makes great cupcakes! This particular recipe makes about 18 cupcakes. I say about because cupcake liners can vary slightly in volume, and is also dependent on how far the liners are filled.
To make regular-sized cupcakes, follow the instructions to make the cake batter. Then divide the batter equally among the cupcake liners, filling each cupcake liner about ⅔ full. Bake for 18-22 minutes or until a cake tester comes out clean from the center of the cupcakes. Allow to cool completely on a wired rack before frosting/icing the cupcakes.
Making a 2 Layer Chocolate Cake
This cake recipe can also be used to bake a two-layer cake. Line and grease two 8" or 20cm cake tins. Follow the instructions to make the cake batter then divide the batter equally between the two cake tins.
Smooth out the cake batter and bake on the center rack for 20-25 minutes or until a cake tester comes out clean from the center of both cakes.
Pro Tips for this Recipe
Ovens
The temperatures stated are for conventional ovens. For convection, fan-forced, fan-assisted, or air-fryers, the temperature must be reduced by 20°C/25°F.
For baking, make sure the oven is fully preheated, and that the rack is in the middle of the oven. Open the oven as little as possible. For best baking results use an oven thermometer.
Remember that all ovens work slightly differently and bake times may need to be adjusted for your specific oven.
Bakeware
Metal bakeware is superior when it comes to baking biscuits, cookies, brownies, muffins and quick bread, scones, cakes. These heat up and cool down faster than glassware. Glassware is heavier, heats up and cools down slower than metal and is more suited for bread puddings, pies, crisps, crumbles and cobblers.
How to Bake Flat Cakes
To ensure you get layers or a sheet cake as flat as possible, check the following:
The oven temperature. Ovens that are too hot will result in domed cakes. To check if your oven is calibrated to the correct temperature use an oven thermometer.
Place the rack in the middle of the oven.
The sides of the cake tin should be greased to allow the cake to rise up the sides without gripping the edges.
Baking strips help keep the walls of the cake tin cooler which results in an even bake. Either use damp baking strips or simply create your own by folding a length of foil 4 to 5 times to create a strip. Wrap this strip around the outside of the cake tin. My sheet pan tin is rather dark, so I also wrapped my tin in foil to allow an even bake.
Finally, the cake can be trimmed either using a serrated knife or a wired cake trimmer.
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📖 Recipe
Chocolate Tray bake
Ingredients
Chocolate Tray Bake Sponge
- 250 grams plain flour (all-purpose, standard grade)
- 4 teaspoons baking powder
- ½ teaspoon salt
- 250 grams milk
- 2 teaspoons vanilla extract
- 2 teaspoons instant coffee or espresso
- 3 eggs (medium/large/size 6)
- 300 grams white granulated sugar
- 125 grams butter (melted)
- 50 grams unsweetened cocoa powder
Chocolate Ganache
- 300 grams cream (heavy/whipping)
- 200 grams milk chocolate
- 100 grams dark chocolate
Instructions
- Preheat the oven the 170°C/340F or 150°fan. Grease and line a 9"x13" (23cm x 33cm) rectangular cake tin.
- Toss the vanilla extract and granulated instant coffee or espresso powder into the milk. The coffee will dissolve into the milk, making it easier to mix in with the rest of the ingredients.250 grams milk, 2 teaspoons vanilla extract, 2 teaspoons instant coffee or espresso
- Whisk together the flour, baking powder and salt. Set aside. Melt the butter and allow it to cool while moving on to the next step.250 grams plain flour, 4 teaspoons baking powder, ½ teaspoon salt
- In a large mixing bowl beat the eggs and sugar until light and fluffy and has doubled in volume. About 3-5 minutes using an electric hand mixer/stand mixer.3 eggs, 300 grams white granulated sugar
- Pour the butter slowly down the side of the bowl with the mixer running. Mix until well combined. Similarly, add in the milk and mix through.125 grams butter
- Sieve the cocoa powder over the egg mixture. Add in half the flour and whisk together until just combined. Add in the rest of the flour and mix until just combined.50 grams unsweetened cocoa powder
- Pour the batter into the prepared baking tin. Smooth to the edges. Bake for 25 to 30 minutes or until a cake tester comes out clean from the centre of the cake. Cool in the tin for 10 minutes before turning out onto a cooling rack to completely cool.
- While the cake is baking and cooling, heat up the cream either over medium heat in a small saucepan or in a heatproof bowl in the microwave.
- Once the cream is hot and bubbling around the edges, toss in the blocks of chocolate. Allow the mixture to sit for 5 minutes, then whisk the mixture together until the ganache is smooth and creamy.
- Allow the ganache to cool in the fridge, stirring it every 15 minutes to check on how much the ganache has set.
- Once the ganache is set, meaning the ganache is firm yet still slightly stirrable. Beat the ganache either in a stand mixer or with an electric handheld mixture until the ganache has lightened in colour and is a bit fluffy.
- Plop the frosting/icing over the top of the completely cooled cake, smooth until mostly even using an offset spatula or the back of a dessert spoon. Then create swirly patterns on the top if desired.
Notes
Nutrition
Nutrition information is an estimate. If scaling the recipe remember to scale your cook and bakeware accordingly. As an Amazon Associate and member of other affiliate programs,I earn from qualifying purchases.
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