Preheat your oven to 350°F (175°C) and grease a cake pan.
In a bowl, whisk together flour, baking powder, baking soda, and salt.
In another bowl, beat sugar, eggs, and olive oil until smooth.
Gradually add the dry ingredients, alternating with buttermilk.
Next, Stir in lemon zest, lemon juice, and vanilla extract.
After that, pour the batter into the prepared pan and then bake for 40-45 minutes.
Allow the cake to cool before serving.