Lemon Butter Bars are simple to make, and everyone who tries them will love the three refreshing layers of bright, sweet flavor!
Note: You may need to extend baking time in 5 minute intervals until set. Different factors such as location, elevation, and weather, etc. can result in baking time needing a little extension. You want the filling to be lightly set (meaning not soupy, and a toothpick won't come out completely clean) before adding the topping. The bars will set more in the fridge but baking them more will help as the fridge can only do so much to help them set.