Preheat the oven to 350°F. Grease and flour a 9-inch round baking pan.
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt.
In a large bowl, beat together the olive oil and sugar until light and fluffy.
Add the eggs, one at a time, beating well after each addition.
Add the lemon juice, vanilla extract, and buttermilk and mix until combined.
Add the dry ingredients and mix until just combined.
Pour the batter into the prepared baking pan and bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean.
Cool the cake in the pan for 10 minutes, then turn out onto a wire rack to cool completely.
Interesting Facts
This cake is a classic Mediterranean recipe and is popular in Italy, Greece, and other Mediterranean countries.
Using olive oil instead of butter adds a unique flavor and texture to the cake.
The lemon juice adds a tangy flavor that pairs perfectly with the sweetness of the sugar.