Preheat the oven to 350 degrees.
Grease a springform pan (that's around 9 inches) and set aside.
In a mixing bowl, add the eggs, lemon zest, lemon juice and milk. Whisk until well mixed and set aside.
In another mixing bowl, add the flour, baking powder, baking soda and salt. Whisk and then set aside.
In a third bowl, add the butter and sugar and mix very well.
Add in ⅓ of the flour mixture. Mix just until combined.
Mix in ½ of the liquid mixture just until combined.
Add in the next ⅓ of the flour mixture. Mix until combined and then add in the last of the liquid mixture, mixing just until combined.
Optional: Add a couple drops of yellow food coloring
Pour into greased spring form pan. (You can set your springform pan onto another sheet pan, just in case the pan leaks a bit.)
Bake at 350 for 35 - 40 minutes.
Leave the cake in the pan and cool completely.