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+ servings
A close-up of a single lemon bar, highlighting its smooth, glossy top and crumbly crust.

3 Ingredient Lemon Bars

Prep Time 5 minutes
Cook Time 25 minutes
These 3 Ingredient Lemon Bars are a quick and effortless dessert with a buttery vanilla cake crust, tangy lemon filling, and a crumbly topping. Made with just cake mix, butter, and lemon pie filling, they are perfect for a simple yet delicious treat.
12 Servings

Ingredients

  • 1 box vanilla cake mix 15.25 oz
  • ½ cup 1 stick unsalted butter, melted
  • 1 can 21 oz lemon pie filling

Instructions
 

Preheat the Oven and Prepare the Baking Dish

  1. Preheat the oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish or line it with parchment paper to prevent sticking and allow for easy removal of the bars.

Prepare the Crust

  1. In a large mixing bowl, combine the dry cake mix and melted butter. Stir the ingredients together until a soft dough forms.
  2. Press half of this mixture evenly into the bottom of the prepared baking dish, ensuring it is spread evenly to create a stable base.

Add the Lemon Filling

  1. Evenly spread the lemon pie filling over the crust, using a spatula to ensure full coverage. Make sure the filling reaches the edges for consistent flavor throughout the bars.

Create the Topping

  1. Crumble the remaining cake mix mixture over the lemon filling, distributing it evenly to create a light and buttery crumb topping.

Bake the Lemon Bars

  1. Place the baking dish in the preheated oven and bake for 25 minutes, or until the edges appear golden brown and the top is lightly crisped.

Cool and Serve

  1. Allow the lemon bars to cool completely before slicing them into squares. For an added touch, dust the bars with powdered sugar before serving.

Notes

To make this recipe gluten-free, simply substitute the vanilla cake mix with a gluten-free vanilla cake mix of the same weight. Ensure that the lemon pie filling is also gluten-free by checking the label for any added thickeners or ingredients containing gluten.
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