Sheet Pan Lemon Bars are a well loved dessert, with a tangy lemon filling atop a buttery shortbread crust. These bars are a popular choice for gatherings, potlucks, or simply satisfying your citrus cravings.
Preheat your oven to 350°F (175°C) and grease the 18x13-inch half sheet pan
In a large bowl, combine the butter, flour, and sugar to create a crumbly crust.
In a large bowl with a hand mixer or a stand mixer bowl, beat eggs, granulated sugar, flour, and baking powder until well blended. Gently mix in lemon juice.
Pour lemon filling on top of the warm crust. Bake 18-24 minutes or until the top is a light golden brown. Cool completely.
In a small bowl, whisk powdered sugar and lemon juice until smooth. Spread over the top of cooled bars. Slice with a sharp knife into lemon squares and enjoy!