This Chocolate Cake is rich, decadent, and unforgettable. With an ultra-moist crumb thanks to oil, buttermilk, and hot coffee, and a deep cocoa flavor enhanced by espresso powder, it's a cake that delivers a wow moment with every slice. Topped with velvety buttercream, it’s the kind of dessert that becomes a favorite at first bite.
0.5cupvegetable oilcanola or melted coconut oil also work
2largeeggsat room temperature
2teaspoonspure vanilla extract
1cupbuttermilkat room temperature
1cupfreshly brewed hot coffeeregular or decaf
Chocolate Buttercream
1.25cupsunsalted buttersoftened
3.5cupsconfectioners’ sugar
0.75cupunsweetened cocoa powdernatural or dutch-process
3-5tablespoonsheavy cream or milk
0.25teaspoonsalt
1teaspoonpure vanilla extract
Instructions
Preheat your oven to 350°F (177°C). Grease two 9-inch round cake pans, line them with parchment paper, and grease the paper again.
In a large bowl, whisk together flour, cocoa powder, sugar, baking soda, baking powder, salt, and espresso powder.
In a separate bowl, whisk oil, eggs, and vanilla until smooth. Add in the buttermilk and mix until combined.
Pour the wet mixture into the dry ingredients, then slowly add the hot coffee while mixing on low speed. The batter will be thin.
Divide the batter evenly into the pans. Bake for 23–26 minutes, or until a toothpick inserted in the center comes out clean. Cool completely in pans.
Beat softened butter until creamy. Add sugar, cocoa powder, 3 tablespoon cream, salt, and vanilla. Mix on low for 30 seconds, then high for 1 minute. Adjust consistency as needed.
Level the cooled cakes if needed. Spread buttercream over one layer, stack the second, and frost the top and sides. Garnish with chocolate chips or shavings.
Refrigerate the cake for 30–60 minutes before serving. Bring to room temperature before slicing.
Notes
Use hot coffee to deepen chocolate flavor.
Spoon flour to avoid packing too much.
Always use room temperature ingredients for even baking.
Don’t overmix.
Cakes can be made ahead and stored refrigerated before frosting.