This is the best chocolate espresso cake recipe! A soft and moist fudgy chocolate cake flavored with espresso powder and an extra creamy butter frosting that's perfect for all chocolate lovers.
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Equipment
kitchen scale
large mixing bowl
measuring spoons
9x13 baking dish
saucepan
offset spatula
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Ingredients
Dry Ingredients
219gall-purpose flour1 ¾ cup
90gnatural cocoa powder, sometimes called unsweetened cocoa powder¾ cup
2tspbaking soda
1tspbaking powder
1tspsalt
Wet Ingredients
3largeeggs
400gsugar2 cups
100g(unrefined) coconut oil, melt and then measure½ cup
1tspvanilla extract
113gbuttermilk1 cup
2tbspespresso powder
240ghot water1 cup
Espresso Buttercream Frosting
226gunsalted butter1 cup/ 2 sticks
1largeegg yolk
1tspvanilla extract
1tbspespresso powder
175gdark chocolate (chips or a bar of chocolate, chopped)1 cup
125gpowdered sugar1¼ cup sugar
Instructions
Prep
Preheat the oven to 350°F/175°C.
Line a 9 x 13 baking pan with parchment paper.
Melt the coconut until it's liquid and then measure.
Add 2 tbsp of espresso powder to 1 cup of hot water and stir to dissolve. Set aside to cool.
Mix
Add 100g (1/2 cup) coconut oil, 227 g (1 cup) buttermilk, 3 large eggs, 1 tsp vanilla extract, and 400 g (2 cups) sugar to a large bowl and whisk to mix.
Sift 219 g (1 3/4 cup) flour, 2 tsp baking soda, 1 tsp baking powder, 1 tsp salt, and 90 g (3/4 cup) cocoa powder into a separate bowl.
Tip: Sift the dry ingredients to break up the tiny clumps of cocoa powder. Use a wire mesh strainer if you don't own a sifter.
Add the dry ingredients into the bowl with the wet ingredients and stir to combine. Add the cup of espresso and stir until just combined.
Bake
Pour the cake batter into the prepared pan and bake for 30 minutes.
Since all ovens vary, start checking the cake around the 25 minute mark. The cake is done when a toothpick inserted into the center comes out clean.
Place the baking pan on a wire rack and cool completely.
How To Make Espresso Buttercream Frosting
Melt the chocolate in a double boiler. Place a small pan filled with 2 inches of water on the stove over medium heat.
Add 175 g (1 cup) chocolate chips to a heat-proof bowl and place on top of the pan, stirring as they melt. If you're using a chocolate bar, break it into pieces before adding it to a bowl. As the water heats up, the steam will heat the bowl, causing the chocolate to melt. Remove the bowl from the pan when half of the chocolate is melted and continue stirring until all of the chocolate is smooth. Set aside to cool.
Add the unsalted butter to a large mixing bowl and whip with a hand mixer on low speed, gradually increasing to medium speed, for 5 minutes. The butter will become light and fluffy. Add 1 egg yolk, 1 tsp vanilla extract, and 1 tbsp espresso powder and beat for an additional 3 minutes.
Stir the melted chocolate into the whipped butter until it's fully combined. Next, add 125 g (1 ¼ cups) powdered sugar and mix well to combine.
Once the cake is completely cool, spoon the frosting across the top of the cake. Spread the frosting over the entire cake in an even layer using an offset spatula or the back of a spoon.
Store
Transfer any leftover cake to an airtight container and refrigerate due to the egg yolk in the frosting. The frosting will become hard once it's cold and tastes like fudge. (This is my kids preferred way to enjoy this cake!)
Allow the cake to warm up at room temperature for an hour so the frosting becomes soft before eating.
Notes
Nutrition information is automatically calculated, so it should only be used as an approximation.