The best lemon bars and very simple to make!
Preheat oven to 350 degrees.
Combine all ingredients and press into a greased 13x9-inch baking dish. Bake 15 minutes.
While crust bakes, combine all ingredients in a large mixing bowl.
Remove crust from oven and top with filling mixture. Bake 25 more minutes and cool completely.
Dust with powdered sugar, cut into large squares, and serve.