Step 1:

Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish or line it with parchment paper for easy removal of the bars after baking.

Step 2:

In a large mixing bowl, pour in the entire box of lemon cake mix. Add the can of lemon pie filling into the bowl. The pie filling is what provides all the moisture, so no additional liquid or eggs are required!

Step 3:

Using a spatula or wooden spoon, gently stir the cake mix and pie filling together until thoroughly combined. The mixture should be thick and sticky but well blended.

Step 4:

Once the ingredients are mixed together, spread the batter evenly into the prepared 9×13-inch baking dish. Use the back of your spoon or spatula to smooth out the top.

Step 5:

Bake in the preheated oven for 25-30 minutes, or until the edges are golden and a toothpick inserted in the center comes out mostly clean (a few moist crumbs are fine). Be sure not to overbake, as this will help maintain the soft and chewy texture of the bars.

Step 6:

Remove the lemon bars from the oven and allow them to cool completely in the pan. Once cooled, cut them into squares or rectangles for serving.