1cupplus 2 tablespoons cake flour4 ½ oz or (130 grams)
½cupunsweetened Dutch process cocoa powder
¼teaspoonbaking powder
½teaspoonsalt
2teaspoonsinstant espresso powder
2largeeggs at room temperature plus 1 egg yolk
1 ½cupsultrafine granulated sugar(300 grams)
⅔cupextra virgin olive oil
1teaspoonvanilla extract
½cupbuttermilkroom temperature or milk soured with lemon juice**
Instructions
Preheat the oven to 325 degrees F. Grease and flour a 6 cup capacity Bundt pan or spray it with flour added baking spray.
Sift together the flour, cocoa powder, and baking powder. Whisk in the salt and espresso powder.
In the bowl of a stand mixer with the whisk attached, beat the eggs and egg yolk for about a minute. With the mixer going, gradually add the sugar and continue beating until thick and lemon colored and batter falls of whisk in ribbons. Reduce mixer speed to medium-low and gradually add olive oil and vanilla.
With mixer on the lowest speed (or by hand), add the flour mixture and buttermilk alternately, beginning and ending with flour mixture.
Pour into the greased tube pan. Set it on a baking sheet and bake for about 45-60 minutes or until a cake tester inserted in the center comes out clean. Let the cake cool for about 10 minutes in the pan, then carefully invert.
Notes
Really, really, grease and flour well! This is a sticky cake. If you have some, I recommend flour-added cooking spray so that you can cover every bit of the pan.