- Preheat oven to 325 degrees F 
- Grease and flour a 10 or 12 cup bundt pan. 
- Zest and Squeeze the juice from one lemon. (We used ¼ cup juice- if you have less, make up the difference with a bit of water). Set aside. 
- Sift the cake mix into your mixing bowl. Add the flour, lemon pudding mix, and sugar and combine. 
- Add all of the other ingredients to the bowl: zest and juice of one lemon, vegetable oil, sour cream, our eggs, Limoncello, lemon extract, and milk. 
- Mix at low speed for about ten seconds to incorporate before increasing to medium speed for two minutes. 
- Bake for 45-50 minutes or until a skewer or toothpick inserted into the cake comes out clean or with just a few crumbs attached. 
- During the last 15 minutes of baking, make the glaze.