My memories of Jell-O pudding go way back. My grandpa’s famous chocolate mud pie relies on a box of this instant dessert to come to life. When I was a kid, a pudding cup was a must in my lunchbox.

In this retro Jell-O recipe, instant lemon pudding mix and gelatin are prepared with fresh lemon juice and rich egg yolks. The egg whites are whipped into a light and fluffy foam and mixed with the ...