Preheat oven to 350°. Spray a 9" springform or bundt pan with cooking spray, or butter well.
Whisk together flour, baking powder and salt in a small bowl. Set aside. Add lemon oil to olive oil in a measuring cup and set aside.
In stand mixer with whisk attachment, beat eggs at medium speed until foamy. Add sugar and zest to the eggs, increase speed to high and beat 3 minutes until light and fluffy.
Reduce speed to low and slowly pour in olive oil, streaming it down the side of the mixer bowl. Scrape down bowl and mix on medium speed until fully incorporated.
Add half of flour mixture and beat on low-medium speed until well incorporated, about a minute. Add all of milk and mix until incorporated, about 30 seconds. Add remaining flour and mix until mostly incorporated. Scrape down bowl and mix by hand to finish fully incorporating.
Pour batter into prepared cake pan. Sprinkle remaining 2 tbsp of sugar evenly over the surface. Bake for approximately 45 minutes, until a tester comes out clean.