Vegan Olive Oil Cake with Tahini Buttercream Frosting
Kelley Heyer
Test Kitchen-Approved

- Serves
- 1 8-inch cake
- Prep Time
- 30 minutes
- Cook Time
- 40 minutes
This recipe was created by Kelley Heyer, which you can find on Instagram and TikTok. A cake that was created to help combat those overly sweet cakes. This cake is fresh, a little savory, with just the right amount of richness. Orange zest brightens up the base of the cake and then gets zested on top of the frosting for a garnish. You get a mix of sweet and savory thanks to the tahini buttercream frosting!
Ingredients
Vegan Olive Oil Cake
- 8.75 ounces all-purpose flour
- 1 teaspoon baking powder
- 3/4 teaspoon kosher salt
- 6 tablespoons JUST Egg (this is the recommended brand to use)
- 8.75 ounces granulated sugar
- Zest of 1/2 orange
- 1/2 cup quality extra-virgin olive oil
- 3/4 cup creamy oat milk (the thicker and creamier, the better)
Tahini Buttercream Frosting
- 1 cup vegan butter - 2 sticks / 16 tablespoons (room temperature)
- 2 1/2 cups powdered sugar, sifted
- 1/2 cup tahini
- 1 teaspoon kosher salt
- 10 thyme sprigs, for decoration
- Zest of 1/2 orange, for decoration
- Pinch of flaky salt, for decoration
Directions
To make the cake
- Step 1
Preheat your oven to 350 F. Grease and line an 8-inch cake pan with parchment paper.
- Step 2
In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
- Step 3
In a large bowl, combine the JUST Egg, sugar, and orange zest. Mix until combined, for about 3 minutes.
- Step 4
Pour in your olive oil and mix until the oil is fully incorporated and the mixture is lighter and slightly fluffy.
- Step 5
Add in half your dry ingredients and fold until the dry is semi-incorporated, ensuring you aren't over-mixing.
- Step 6
Add all the milk and mix until incorporated. Repeat the process by adding in the remaining dry ingredients. Stop mixing once the flour has been incorporated.
- Step 7
Transfer the batter to the prepared cake pan and bake until the cake is golden brown. A toothpick or cake tester should come out with a few crumbs attached about 40 - 45 minutes. Transfer the pan to a cooling rack and let cool for 10 minutes, before removing from the cake pan and cooling completely.
To make the frosting
- Step 1
In the bowl of a stand mixer, cream the butter on medium-highi until very fluffy and the color has lightened. Add in salt.
- Step 2
Pour in the sifted powdered sugar, one cup at a time and carefully continue mixing.
- Step 3
Make sure your tahini is smooth and there's no lumps and then add the tahini to the bowl until well incorporated.
Decorating your cake
- Step 1
Add your cake to a cake stand after it's cooled completely.
- Step 2
You can add the frosting however you'd like, whether with a piping bag or using a spatula. Once done, add on some thyme sprigs throughout. Zest on additional orange zest. Sprinkle on top flaky salt. Enjoy!