This chocolate olive oil cake is soft, deeply chocolatey, and incredibly easy to make. Made with olive oil for a tender crumb and rich flavor, it’s a simple single-layer cake that feels elegant enough for any occasion — no frosting required.
Preheat the oven to 350°F (175°C). Grease a 9-inch round cake pan and line the bottom with parchment for easy release.
In a large bowl, whisk together the flour, cocoa, granulated sugar, brown sugar, baking soda, baking powder, and salt until well combined.
Add the olive oil, eggs, vanilla, and buttermilk. Whisk until the mixture is mostly combined. (A few small lumps are fine.)
Pour in the hot coffee and whisk until smooth and glossy. The batter will be thin.
Pour into the prepared pan and smooth the top. Bake 35–40 minutes, or until the center springs back when lightly touched and a toothpick comes out clean or with a few moist crumbs.
Let the cake cool in the pan for 15 minutes, then turn out onto a wire rack to cool completely. (Flip twice so it’s right side up.)
Dust with confectioners’ sugar before serving if you like.
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Notes
Olive oil: Use a mild extra-virgin olive oil with a pleasant, fruity flavor. Avoid strongly peppery oils that may overpower the chocolate.
Hot coffee: Hot coffee enhances the chocolate flavor without making the cake taste like coffee. Hot water works as a substitute.
Thin batter: The batter will be thin after adding the coffee. This is normal and helps create the cake’s soft texture.
Surface cracks: A gentle dome and light cracks on top are normal for this style of cake.
Storage note: Keep in an airtight container at room temperature up to 3 days, or wrap and freeze up to 2 months.