place parchment paper in the bottom of 3 round 6" cake pans and spray with a nonstick baking spray.
Preheat oven to 350 degrees.
In large mixer bowl blend flour, sugar, baking powder, and salt together.
Place milk, oil, butter, lemon extract, and lemon juice in a bowl, and mix thoroughly.
Pot wet mixture into dry mixture,
Mix on medium speed, scrape down the sides of the bowl, and mix for another minute.
Add in eggs, and continue beating for 2 more minutes.
Portion the batter evenly into the cake pans.
Bake for 20 minutes or until the toothpick comes out clean.
Cool for 10 minutes then turn out onto a cooling rack.