A 1970's classic family dessert. Simple and absolutely delicious.
Pre-heat oven to 325° degrees. Grease and flour cake pan.
Cream butter. Add sugar and mix well. Add eggs one at a time and mix well. Scrape the side of the bowl as you mix. Add lemon extract and lemon zest. Mix well.
Add flour and 7-Up, alternating between the two. Scrape the side of the bowl.
Pour evenly in your cake pan. Tap the cake pan on the table a few times to release any air bubbles. Bake in the oven for 1 hour and 15 minutes. If you insert a toothpick, it will come out clean when done.
Remove from oven and allow to rest for 5 minutes. Invert on a wire rack and allow to cool completely before serving.