I have probably made this recipe over 100 times and it is my favorite cake in the world. The unique thing is that it calls for oil instead of butter, which makes for a more soft and moist cake. Recently I made a couple of minor tweaks (slightly less leavening and lower temp) that made it even better because it now bakes more evenly.
OVERVIEW
Total: 1 hr 35 min
Prep: 30 min
Inactive: 30 min
Cook: 35 min
Yield: 12 servings
INGREDIENTS – CAKE
Cooking spray, for greasing the pan
1 3/4 cups all-purpose flour
2 cups sugar
3/4 cups cocoa powder (love Hershey’s Special Dark!)
1 3/4 teaspoon baking soda
3/4 teaspoon baking powder
1 teaspoon salt (Diamond Crystal Kosher)
1 cup full fat buttermilk, shaken
1/2 cup vegetable oil (Canola is ok but Avocado oil is better for you)
2 large eggs
1 teaspoon vanilla extract
1 cup hot brewed coffee
INGREDIENTS – ICING
6 oz semisweet chocolate (Ghirardelli bar is great)
2 sticks unsalted butter (like Kerrigold) at room temp
1 large egg yolk
1 teaspoon vanilla extract
1 1/4 confectioners sugar, sifted
INSTRUCTIONS – CAKE
Preheat the oven to 325 degrees. Grease two round 9” pans with cooking spray and line the bottom with rounds of parchment paper. Sift together flour, sugar, cocoa, baking soda, baking powder and salt by pushing through a fine mesh sieve with a spoon (to avoid lumps). Add flour mixture to the bowl of a stand mixer fitted with a paddle attachment.
In a second bowl, combine buttermilk, oil, eggs and vanilla; whisk to combine. With the mixer on low, add the wet ingredients into the dry ingredients and mix to combine, about 15 seconds. Add the hot coffee and mix until just combined.
Divide batter between pans and bake until a toothpick comes out clean, or about 35 minutes. Let cool for 10 minutes before using a butter knife to release cake from side, then turn out on cooling racks.
INSTRUCTIONS – ICING
Chop chocolate and melt in heatproof bowl over simmering water. When smooth, set aside to let cool.
In the bowl of an electric mixer fitted with a paddle attachment, beat the butter until it gets lighter in color, about 3 minutes. Add the egg yolk and vanilla and beat for another 2 minutes.
With the mixer on low, add the confectioners sugar—1/2 cup at a time (to avoid making a mess). Keep adding until fully incorporated. Spread icing immediately over cooled cake.