This is one of those recipes that sounds too simple to be real. My Grandma Betty always called it her “3-ingredient miracle” and swore it could disappear faster than anything else on the dessert table. I finally believed her when I brought a pan of these to a baby shower and watched them vanish slice by slice before I could even grab a second piece.
Using lemon cake mix, butter, and lemon pie filling, you get bright, tangy bars with a buttery crumb top and soft, gooey center—perfect for when you want a homemade dessert but only have a few minutes and a few ingredients.
Serve these lemon cake bars slightly warm or at room temperature, cut into small squares right in the glass casserole dish. They’re great with a dusting of powdered sugar on top and a dollop of whipped cream or a scoop of vanilla ice cream if you want to dress them up.
Pair with hot coffee, iced tea, or sparkling water with lemon for a baby shower, brunch, or casual weeknight dessert. They travel well in the baking dish, so they’re ideal for potlucks, office treats, or any gathering where you need something easy that still feels special.
3-Ingredient Lemon Cake Bars
Servings: 12
