Line an 8 or 9-inch pan with parchment paper, then preheat your oven to 350 degrees F.
To make the cake, in a large bowl, add the softened unsalted butter and organic sugar. Mix it until light and fluffy.
Next, add the eggs to the butter and sugar mixture. It is advised to add the eggs one at a time to ensure that they are all well-blended.
Add in the vanilla extract, fresh lemon juice, and fresh lemon zest to the mixture. Mix well and set the bowl aside.
In another medium-sized bowl, add the dry ingredients - all-purpose flour, baking soda, and baking powder. Whisk until well-combined.
Add the dry ingredients mixture to the wet ingredients mixture. Mix until well-combined, then add the sour cream.
Pour into pan and bake for 25-30 minutes. You can check your cake if it is done by sticking in a toothpick or a cake tester (if you have them). Once it comes out dry, your cake is ready.
Allow the cake to cool for about 15 minutes.