Preheat the oven to 350℉. Butter and flour a 9-inch springform pan or cake pan.
In a large mixing bowl, combine the extra virgin olive oil, whole milk, eggs, lemon zest, lemon juice, and vanilla extract.
Add the granulated sugar and stir to combine. Add the baking powder and salt and combine.
Add the flour and stir to combine until just incorporated. Small lumps are okay.
Bake for 26-28 minutes or until the top has a domed shape, it is lightly brown and a toothpick inserted in the middle comes out clean.
Allow the cake to fully cool, then dust with powdered sugar (optional) and cut into slices.
Notes
Use Extra Virgin Olive Oil (not regular or light)Real High-Quality Ingredients: use real high-quality ingredients such as real lemon juice (and zest), real vanilla extract, all-purpose unbleached flour, and pasture-raised eggs. Using real high-quality ingredients will significantly improve the flavor and outcome of the cake.Lemon Zest: Zest only the outermost bright yellow part, not the innermost white pith.Don’t Overmix: Mix by hand using a large spoon to prevent overmixing. Mix until all ingredients are just incorporated. Some small lumps in the cake batter are just fine and will bake out in the oven.Scrape Down the Bowl: To ensure that all the ingredients are evenly incorporated.Prepare the Baking Dish: Butter and flour the dish prior to baking to ensure that the cake does not stick to the pan.Allow the Cake to Cool: Prior to cutting in order to cut nice clean slices.Dust with Powdered Sugar: Optional, but make the cake look fancy without much extra effort.