Preheat oven to 350°
Prepare a 13x9 baking pan with a baking spray or shortening and flour (for easy release).
In the bowl of a mixer beat sugars with eggs until well mixed.
Add in flour and baking powder, as you mix it pour in the milk, lemon juice, melted butter, oil, sour cream, vanilla, lemon extracts and mix them until the cake batter is combined. You'll mix this on low at first then on medium until it's all thoroughly mixed.
Place the cake batter into the prepared pan and bake for 40 minutes or until a toothpick comes out clean.
Allow cake to cool for 15 minutes, you can either let the cake cool completely in the baking pan or turn the cake out onto a cooling rack if you won't be frosting it in the pan.