Preheat oven to 325 degrees F and grease and flour a bundt pan.
In a separate bowl whisk the all purpose flour, baking powder, and salt to combine, set aside for later.
Cream the butter with the paddle attachment in your mixer, gradually add the sugar and beat until light and fluffy 3 to 5 minutes.
Add the eggs one at a time blending after each to incorporate.
In a small bowl or measuring cup, add the sour cream, lemon juice, lemon zest, vanilla extract, and lemon extract.
While mixing on low speed, add the flour mixture alternately with the sour cream mixture to the butter, sugar, & egg mixture. Begin and end with the dry ingredients. (I add the flour mixture three times and the sour cream mixture twice). Mix just until incorporated.
Bake at 325 degrees for 60-70 minutes. (Our cake, which was baked in a light colored pan, took about 70 minutes.) Baking times may vary. Check on the cake as it nears the 1 hour mark and adjust time as needed. When an inserted toothpick or skewer comes out clean or with just a few moist crumbs attached, it is ready.
This recipe makes approximately 8-8.5 cups of batter.