This cake recipe is a family favorite which was handed down from my grandmother and my great-aunt. I don't believe I've ever seen it in a cookbook -- perhaps because it includes a cake mix in the recipe -- but it's available many places online. I include one such site at the subject link.
This makes a great summery dessert.
1 package lemon cake mix (I use Duncan Hines Lemon Supreme)
1 3 oz. package lemon Jello
3/4 cup water
3/4 cup vegetable oil
Mix all together for 4 minutes.
Bake in a 9 x 13 pan at 350 degrees for 35 minutes.
When cake comes out of the oven, immediately poke it all over with a fork. Then pour over the cake a glaze consisting of:
2 cups sifted powdered sugar
2 lemons -- juice and grated zest
Cool before serving.