A simple, two-ingredient (plus kosher salt) filling made from juicy fresh lemons and sweetened condensed milk goes on top of the crust and is finished with the crunchy crumbles. These bars are so ...

1 1/2 c. sugar cookie mix Cooking spray (14-oz.) can sweetened condensed milk white chocolate chips unsalted butter kosher salt 1 1/2 c. crushed sugar or shortbread cookies (4-oz.) 1/2 c.